./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.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_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/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_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/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_ca987be8-9adb-497e-ad23-df3aa4638573/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 a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:05:53,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:05:53,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:05:53,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:05:53,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:05:53,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:05:53,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:05:53,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:05:53,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:05:53,414 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:05:53,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:05:53,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:05:53,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:05:53,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:05:53,415 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:05:53,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:05:53,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:05:53,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:05:53,416 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:53,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:53,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:05:53,417 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:05:53,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:05:53,418 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_ca987be8-9adb-497e-ad23-df3aa4638573/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 -> a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 [2024-12-02 07:05:53,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:05:53,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:05:53,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:05:53,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:05:53,674 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:05:53,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:05:56,304 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/6c560930d/9e160126fd0545f6861d8bc489b0234d/FLAG95f1e6c39 [2024-12-02 07:05:56,520 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:05:56,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:05:56,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/6c560930d/9e160126fd0545f6861d8bc489b0234d/FLAG95f1e6c39 [2024-12-02 07:05:56,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/6c560930d/9e160126fd0545f6861d8bc489b0234d [2024-12-02 07:05:56,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:05:56,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:05:56,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:05:56,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:05:56,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:05:56,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:05:56" (1/1) ... [2024-12-02 07:05:56,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429d21ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:56, skipping insertion in model container [2024-12-02 07:05:56,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:05:56" (1/1) ... [2024-12-02 07:05:56,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:05:57,030 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_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i[916,929] [2024-12-02 07:05:57,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:05:57,093 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:05:57,103 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_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i[916,929] [2024-12-02 07:05:57,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:05:57,156 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:05:57,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57 WrapperNode [2024-12-02 07:05:57,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:05:57,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:05:57,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:05:57,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:05:57,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,208 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 486 [2024-12-02 07:05:57,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:05:57,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:05:57,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:05:57,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:05:57,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,231 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 07:05:57,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,248 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:05:57,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:05:57,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:05:57,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:05:57,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (1/1) ... [2024-12-02 07:05:57,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:05:57,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:05:57,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:05:57,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 07:05:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:05:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:05:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 07:05:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:05:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:05:57,426 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:05:57,428 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:05:57,977 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-12-02 07:05:57,977 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:05:57,987 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:05:57,987 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:05:57,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:57 BoogieIcfgContainer [2024-12-02 07:05:57,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:05:57,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:05:57,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:05:57,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:05:57,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:05:56" (1/3) ... [2024-12-02 07:05:57,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9365aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:05:57, skipping insertion in model container [2024-12-02 07:05:57,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:05:57" (2/3) ... [2024-12-02 07:05:57,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9365aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:05:57, skipping insertion in model container [2024-12-02 07:05:57,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:57" (3/3) ... [2024-12-02 07:05:57,995 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:05:58,006 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:05:58,008 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-53.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:05:58,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:05:58,077 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;@5953eeff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:05:58,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:05:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:05:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:05:58,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:05:58,092 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:58,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:05:58,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash 528541446, now seen corresponding path program 1 times [2024-12-02 07:05:58,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:58,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007182563] [2024-12-02 07:05:58,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:58,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 07:05:58,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:58,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007182563] [2024-12-02 07:05:58,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007182563] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:05:58,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617161044] [2024-12-02 07:05:58,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:58,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:05:58,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:05:58,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:05:58,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:05:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:58,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:05:58,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:05:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 07:05:58,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:05:58,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617161044] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:58,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:05:58,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:05:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497363826] [2024-12-02 07:05:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:58,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:05:58,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:58,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:05:58,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:05:58,712 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:05:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:05:58,737 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-12-02 07:05:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:05:58,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-12-02 07:05:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:05:58,744 INFO L225 Difference]: With dead ends: 217 [2024-12-02 07:05:58,745 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:05:58,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:05:58,749 INFO L435 NwaCegarLoop]: 155 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, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:05:58,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:05:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:05:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:05:58,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:05:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-12-02 07:05:58,783 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-12-02 07:05:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:05:58,783 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-12-02 07:05:58,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:05:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-12-02 07:05:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:05:58,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:05:58,796 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:58,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:05:58,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:05:58,997 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:05:58,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:58,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1839681894, now seen corresponding path program 1 times [2024-12-02 07:05:58,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:58,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038024330] [2024-12-02 07:05:58,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:58,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:05:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:05:59,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:05:59,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038024330] [2024-12-02 07:05:59,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038024330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:05:59,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:05:59,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:05:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855518339] [2024-12-02 07:05:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:05:59,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:05:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:05:59,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:05:59,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:05:59,584 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:05:59,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:05:59,609 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-12-02 07:05:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:05:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-12-02 07:05:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:05:59,612 INFO L225 Difference]: With dead ends: 213 [2024-12-02 07:05:59,612 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:05:59,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:05:59,614 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:05:59,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:05:59,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:05:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:05:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:05:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-12-02 07:05:59,626 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-12-02 07:05:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:05:59,627 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-12-02 07:05:59,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:05:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-12-02 07:05:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:05:59,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:05:59,630 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:05:59,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:05:59,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:05:59,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:05:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash 818613540, now seen corresponding path program 1 times [2024-12-02 07:05:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:05:59,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910299480] [2024-12-02 07:05:59,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:05:59,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:05:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910299480] [2024-12-02 07:06:02,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910299480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:02,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:02,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:06:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028841288] [2024-12-02 07:06:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:02,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:02,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:02,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:06:02,210 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:06:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:02,696 INFO L93 Difference]: Finished difference Result 219 states and 311 transitions. [2024-12-02 07:06:02,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-12-02 07:06:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:02,698 INFO L225 Difference]: With dead ends: 219 [2024-12-02 07:06:02,699 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 07:06:02,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:02,700 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 85 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:02,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 404 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:06:02,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 07:06:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 07:06:02,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 93 states have internal predecessors, (123), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:06:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2024-12-02 07:06:02,715 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 140 [2024-12-02 07:06:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:02,716 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2024-12-02 07:06:02,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:06:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2024-12-02 07:06:02,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:06:02,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:02,718 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:02,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:06:02,719 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:02,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1519678118, now seen corresponding path program 1 times [2024-12-02 07:06:02,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:02,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564167480] [2024-12-02 07:06:02,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:02,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:06,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:06,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564167480] [2024-12-02 07:06:06,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564167480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:06,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:06,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:06:06,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477580721] [2024-12-02 07:06:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:06,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:06:06,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:06,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:06:06,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:06,096 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:06,981 INFO L93 Difference]: Finished difference Result 336 states and 470 transitions. [2024-12-02 07:06:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-12-02 07:06:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:06,983 INFO L225 Difference]: With dead ends: 336 [2024-12-02 07:06:06,984 INFO L226 Difference]: Without dead ends: 225 [2024-12-02 07:06:06,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:06,985 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 147 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:06,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 475 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:06:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-12-02 07:06:07,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 219. [2024-12-02 07:06:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 178 states have (on average 1.3258426966292134) internal successors, (236), 178 states have internal predecessors, (236), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:06:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 308 transitions. [2024-12-02 07:06:07,012 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 308 transitions. Word has length 140 [2024-12-02 07:06:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:07,012 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 308 transitions. [2024-12-02 07:06:07,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 308 transitions. [2024-12-02 07:06:07,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:06:07,015 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:07,015 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:07,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:06:07,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:07,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1542625043, now seen corresponding path program 1 times [2024-12-02 07:06:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573420666] [2024-12-02 07:06:07,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:10,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573420666] [2024-12-02 07:06:10,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573420666] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:10,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:10,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:06:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667179544] [2024-12-02 07:06:10,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:10,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:06:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:10,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:06:10,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:10,096 INFO L87 Difference]: Start difference. First operand 219 states and 308 transitions. Second operand has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:11,063 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2024-12-02 07:06:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:06:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 142 [2024-12-02 07:06:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:11,065 INFO L225 Difference]: With dead ends: 330 [2024-12-02 07:06:11,065 INFO L226 Difference]: Without dead ends: 219 [2024-12-02 07:06:11,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:06:11,067 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 127 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:11,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 406 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:06:11,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-12-02 07:06:11,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 112. [2024-12-02 07:06:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.3076923076923077) internal successors, (119), 91 states have internal predecessors, (119), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:06:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2024-12-02 07:06:11,087 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 142 [2024-12-02 07:06:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:11,088 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2024-12-02 07:06:11,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 9.166666666666666) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2024-12-02 07:06:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 07:06:11,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:11,090 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:11,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:06:11,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:11,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:11,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1602478714, now seen corresponding path program 1 times [2024-12-02 07:06:11,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:11,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265686501] [2024-12-02 07:06:11,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:11,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:11,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:11,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265686501] [2024-12-02 07:06:11,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265686501] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:11,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:11,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:06:11,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666221271] [2024-12-02 07:06:11,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:11,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:06:11,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:11,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:06:11,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:11,336 INFO L87 Difference]: Start difference. First operand 112 states and 155 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:11,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:11,357 INFO L93 Difference]: Finished difference Result 221 states and 307 transitions. [2024-12-02 07:06:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:06:11,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 07:06:11,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:11,359 INFO L225 Difference]: With dead ends: 221 [2024-12-02 07:06:11,359 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 07:06:11,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:06:11,360 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:11,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 07:06:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 07:06:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 91 states have internal predecessors, (118), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:06:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 154 transitions. [2024-12-02 07:06:11,371 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 154 transitions. Word has length 145 [2024-12-02 07:06:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:11,372 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 154 transitions. [2024-12-02 07:06:11,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 154 transitions. [2024-12-02 07:06:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 07:06:11,373 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:11,373 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:11,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:06:11,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:11,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1015672700, now seen corresponding path program 1 times [2024-12-02 07:06:11,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:11,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077986254] [2024-12-02 07:06:11,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:11,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:12,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077986254] [2024-12-02 07:06:12,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077986254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:12,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:12,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:06:12,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334375828] [2024-12-02 07:06:12,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:06:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:12,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:06:12,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:12,178 INFO L87 Difference]: Start difference. First operand 112 states and 154 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:12,853 INFO L93 Difference]: Finished difference Result 299 states and 409 transitions. [2024-12-02 07:06:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-12-02 07:06:12,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:12,855 INFO L225 Difference]: With dead ends: 299 [2024-12-02 07:06:12,856 INFO L226 Difference]: Without dead ends: 190 [2024-12-02 07:06:12,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:06:12,857 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 86 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:12,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 970 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:06:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-12-02 07:06:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-12-02 07:06:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 154 states have (on average 1.2922077922077921) internal successors, (199), 155 states have internal predecessors, (199), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 07:06:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-12-02 07:06:12,880 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 145 [2024-12-02 07:06:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:12,881 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-12-02 07:06:12,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-12-02 07:06:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:06:12,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:12,883 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:12,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:06:12,883 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:12,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:12,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2143372836, now seen corresponding path program 1 times [2024-12-02 07:06:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:12,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736793213] [2024-12-02 07:06:12,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:12,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:14,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:14,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736793213] [2024-12-02 07:06:14,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736793213] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:14,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:14,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:06:14,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873204625] [2024-12-02 07:06:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:14,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:14,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:14,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:14,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:14,251 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:15,496 INFO L93 Difference]: Finished difference Result 607 states and 829 transitions. [2024-12-02 07:06:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:06:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-12-02 07:06:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:15,501 INFO L225 Difference]: With dead ends: 607 [2024-12-02 07:06:15,501 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 07:06:15,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:15,502 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 178 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:15,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 616 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:06:15,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 07:06:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416. [2024-12-02 07:06:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 348 states have (on average 1.3074712643678161) internal successors, (455), 351 states have internal predecessors, (455), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 571 transitions. [2024-12-02 07:06:15,555 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 571 transitions. Word has length 146 [2024-12-02 07:06:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:15,556 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 571 transitions. [2024-12-02 07:06:15,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 571 transitions. [2024-12-02 07:06:15,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:06:15,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:15,558 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:15,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:06:15,558 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:15,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:15,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1450529882, now seen corresponding path program 1 times [2024-12-02 07:06:15,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:15,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246179631] [2024-12-02 07:06:15,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:15,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:17,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:17,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246179631] [2024-12-02 07:06:17,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246179631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:17,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:17,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:06:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028294819] [2024-12-02 07:06:17,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:17,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:06:17,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:17,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:06:17,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:17,883 INFO L87 Difference]: Start difference. First operand 416 states and 571 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:19,410 INFO L93 Difference]: Finished difference Result 874 states and 1195 transitions. [2024-12-02 07:06:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:06:19,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-12-02 07:06:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:19,414 INFO L225 Difference]: With dead ends: 874 [2024-12-02 07:06:19,414 INFO L226 Difference]: Without dead ends: 461 [2024-12-02 07:06:19,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:06:19,416 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 229 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:19,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 632 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:06:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-12-02 07:06:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 423. [2024-12-02 07:06:19,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 355 states have (on average 1.3014084507042254) internal successors, (462), 358 states have internal predecessors, (462), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 578 transitions. [2024-12-02 07:06:19,466 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 578 transitions. Word has length 146 [2024-12-02 07:06:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:19,467 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 578 transitions. [2024-12-02 07:06:19,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 578 transitions. [2024-12-02 07:06:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:06:19,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:19,469 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:19,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:06:19,470 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:19,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1325724386, now seen corresponding path program 1 times [2024-12-02 07:06:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504713183] [2024-12-02 07:06:19,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:21,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:21,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504713183] [2024-12-02 07:06:21,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504713183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:21,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:21,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 07:06:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431336341] [2024-12-02 07:06:21,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:21,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:06:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:21,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:06:21,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:21,083 INFO L87 Difference]: Start difference. First operand 423 states and 578 transitions. Second operand has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:22,793 INFO L93 Difference]: Finished difference Result 882 states and 1203 transitions. [2024-12-02 07:06:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:06:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-12-02 07:06:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:22,796 INFO L225 Difference]: With dead ends: 882 [2024-12-02 07:06:22,796 INFO L226 Difference]: Without dead ends: 462 [2024-12-02 07:06:22,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:06:22,798 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 159 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:22,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 768 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 07:06:22,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-12-02 07:06:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 424. [2024-12-02 07:06:22,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 356 states have (on average 1.300561797752809) internal successors, (463), 359 states have internal predecessors, (463), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 579 transitions. [2024-12-02 07:06:22,827 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 579 transitions. Word has length 146 [2024-12-02 07:06:22,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:22,827 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 579 transitions. [2024-12-02 07:06:22,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.9) internal successors, (59), 12 states have internal predecessors, (59), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 579 transitions. [2024-12-02 07:06:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:06:22,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:22,830 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:22,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:06:22,830 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:22,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2026788964, now seen corresponding path program 1 times [2024-12-02 07:06:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117231226] [2024-12-02 07:06:22,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:22,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:25,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117231226] [2024-12-02 07:06:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117231226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:25,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:25,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:06:25,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862842174] [2024-12-02 07:06:25,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:25,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:06:25,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:25,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:06:25,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:06:25,246 INFO L87 Difference]: Start difference. First operand 424 states and 579 transitions. Second operand has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:06:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:27,052 INFO L93 Difference]: Finished difference Result 853 states and 1161 transitions. [2024-12-02 07:06:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:06:27,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-12-02 07:06:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:27,054 INFO L225 Difference]: With dead ends: 853 [2024-12-02 07:06:27,054 INFO L226 Difference]: Without dead ends: 432 [2024-12-02 07:06:27,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:06:27,056 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 139 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:27,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1012 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 07:06:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-12-02 07:06:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 423. [2024-12-02 07:06:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 355 states have (on average 1.2985915492957747) internal successors, (461), 358 states have internal predecessors, (461), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 577 transitions. [2024-12-02 07:06:27,099 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 577 transitions. Word has length 146 [2024-12-02 07:06:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:27,100 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 577 transitions. [2024-12-02 07:06:27,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.9) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:06:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 577 transitions. [2024-12-02 07:06:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 07:06:27,102 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:27,102 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:27,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:06:27,102 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:27,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -390002472, now seen corresponding path program 1 times [2024-12-02 07:06:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436974503] [2024-12-02 07:06:27,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:27,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:06:27,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:27,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436974503] [2024-12-02 07:06:27,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436974503] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:06:27,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951244665] [2024-12-02 07:06:27,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:27,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:27,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:27,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:06:27,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:06:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:27,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:06:27,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:27,548 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:27,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:06:27,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951244665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:27,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:06:27,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 07:06:27,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660319402] [2024-12-02 07:06:27,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:27,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:06:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:27,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:06:27,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:27,550 INFO L87 Difference]: Start difference. First operand 423 states and 577 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:27,638 INFO L93 Difference]: Finished difference Result 863 states and 1176 transitions. [2024-12-02 07:06:27,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:06:27,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 07:06:27,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:27,642 INFO L225 Difference]: With dead ends: 863 [2024-12-02 07:06:27,642 INFO L226 Difference]: Without dead ends: 443 [2024-12-02 07:06:27,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:27,644 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:27,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 725 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-12-02 07:06:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 437. [2024-12-02 07:06:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 369 states have (on average 1.2872628726287263) internal successors, (475), 372 states have internal predecessors, (475), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 591 transitions. [2024-12-02 07:06:27,695 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 591 transitions. Word has length 147 [2024-12-02 07:06:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:27,696 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 591 transitions. [2024-12-02 07:06:27,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 591 transitions. [2024-12-02 07:06:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 07:06:27,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:27,698 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:27,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:06:27,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 07:06:27,898 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:27,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1451337970, now seen corresponding path program 1 times [2024-12-02 07:06:27,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:27,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713803638] [2024-12-02 07:06:27,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:06:28,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713803638] [2024-12-02 07:06:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713803638] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:06:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067235936] [2024-12-02 07:06:28,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:28,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:28,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:28,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:06:28,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:06:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:28,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:06:28,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:28,318 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:28,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:06:28,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067235936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:28,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:06:28,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 07:06:28,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903612073] [2024-12-02 07:06:28,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:28,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:06:28,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:28,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:06:28,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:28,320 INFO L87 Difference]: Start difference. First operand 437 states and 591 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:28,377 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2024-12-02 07:06:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:06:28,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 07:06:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:28,380 INFO L225 Difference]: With dead ends: 886 [2024-12-02 07:06:28,380 INFO L226 Difference]: Without dead ends: 452 [2024-12-02 07:06:28,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:28,382 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:28,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 576 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:28,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-12-02 07:06:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-12-02 07:06:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 384 states have (on average 1.2760416666666667) internal successors, (490), 387 states have internal predecessors, (490), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:06:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 606 transitions. [2024-12-02 07:06:28,422 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 606 transitions. Word has length 147 [2024-12-02 07:06:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:28,422 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 606 transitions. [2024-12-02 07:06:28,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 606 transitions. [2024-12-02 07:06:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:06:28,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:28,424 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:28,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:06:28,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 07:06:28,625 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:28,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:28,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1207686357, now seen corresponding path program 1 times [2024-12-02 07:06:28,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:28,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298269152] [2024-12-02 07:06:28,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:31,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:31,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298269152] [2024-12-02 07:06:31,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298269152] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:31,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:31,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:06:31,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348585816] [2024-12-02 07:06:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:31,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:06:31,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:31,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:06:31,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:06:31,452 INFO L87 Difference]: Start difference. First operand 452 states and 606 transitions. Second operand has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:33,859 INFO L93 Difference]: Finished difference Result 708 states and 948 transitions. [2024-12-02 07:06:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 07:06:33,860 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-12-02 07:06:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:33,863 INFO L225 Difference]: With dead ends: 708 [2024-12-02 07:06:33,863 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 07:06:33,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:06:33,864 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 285 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:33,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 889 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:06:33,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 07:06:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 508. [2024-12-02 07:06:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 437 states have (on average 1.2814645308924486) internal successors, (560), 441 states have internal predecessors, (560), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:06:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 680 transitions. [2024-12-02 07:06:33,913 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 680 transitions. Word has length 148 [2024-12-02 07:06:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:33,913 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 680 transitions. [2024-12-02 07:06:33,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 680 transitions. [2024-12-02 07:06:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:06:33,915 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:33,915 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:33,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:06:33,915 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:33,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash -506621779, now seen corresponding path program 1 times [2024-12-02 07:06:33,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:33,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678383419] [2024-12-02 07:06:33,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:35,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:35,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678383419] [2024-12-02 07:06:35,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678383419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:35,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:35,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:06:35,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962806308] [2024-12-02 07:06:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:35,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:06:35,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:35,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:06:35,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:06:35,951 INFO L87 Difference]: Start difference. First operand 508 states and 680 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:36,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:36,776 INFO L93 Difference]: Finished difference Result 841 states and 1122 transitions. [2024-12-02 07:06:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:06:36,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-12-02 07:06:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:36,779 INFO L225 Difference]: With dead ends: 841 [2024-12-02 07:06:36,779 INFO L226 Difference]: Without dead ends: 590 [2024-12-02 07:06:36,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:36,780 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:36,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 813 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:06:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-02 07:06:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 515. [2024-12-02 07:06:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 444 states have (on average 1.277027027027027) internal successors, (567), 448 states have internal predecessors, (567), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:06:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 687 transitions. [2024-12-02 07:06:36,827 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 687 transitions. Word has length 148 [2024-12-02 07:06:36,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:36,828 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 687 transitions. [2024-12-02 07:06:36,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 687 transitions. [2024-12-02 07:06:36,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:06:36,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:36,829 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:36,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:06:36,830 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:36,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:36,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2025334807, now seen corresponding path program 1 times [2024-12-02 07:06:36,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:36,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644274253] [2024-12-02 07:06:36,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:36,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:37,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:37,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644274253] [2024-12-02 07:06:37,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644274253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:37,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:37,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:06:37,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139608424] [2024-12-02 07:06:37,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:37,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:37,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:37,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:37,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:06:37,996 INFO L87 Difference]: Start difference. First operand 515 states and 687 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:38,582 INFO L93 Difference]: Finished difference Result 1099 states and 1464 transitions. [2024-12-02 07:06:38,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:06:38,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-12-02 07:06:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:38,586 INFO L225 Difference]: With dead ends: 1099 [2024-12-02 07:06:38,586 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 07:06:38,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:38,588 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 47 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:38,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 709 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:06:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 07:06:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 515. [2024-12-02 07:06:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 444 states have (on average 1.268018018018018) internal successors, (563), 448 states have internal predecessors, (563), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 07:06:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 683 transitions. [2024-12-02 07:06:38,634 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 683 transitions. Word has length 148 [2024-12-02 07:06:38,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:38,634 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 683 transitions. [2024-12-02 07:06:38,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 683 transitions. [2024-12-02 07:06:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:06:38,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:38,635 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:38,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:06:38,636 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:38,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:38,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1324270229, now seen corresponding path program 1 times [2024-12-02 07:06:38,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:38,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274982515] [2024-12-02 07:06:38,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:38,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:40,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:40,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274982515] [2024-12-02 07:06:40,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274982515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:40,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:40,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:06:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735783550] [2024-12-02 07:06:40,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:40,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:06:40,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:40,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:06:40,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:06:40,499 INFO L87 Difference]: Start difference. First operand 515 states and 683 transitions. Second operand has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:41,986 INFO L93 Difference]: Finished difference Result 777 states and 1028 transitions. [2024-12-02 07:06:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:06:41,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-12-02 07:06:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:41,989 INFO L225 Difference]: With dead ends: 777 [2024-12-02 07:06:41,989 INFO L226 Difference]: Without dead ends: 519 [2024-12-02 07:06:41,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:06:41,989 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 180 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:41,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 892 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:06:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-12-02 07:06:42,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 261. [2024-12-02 07:06:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 225 states have (on average 1.2622222222222221) internal successors, (284), 227 states have internal predecessors, (284), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 07:06:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 344 transitions. [2024-12-02 07:06:42,005 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 344 transitions. Word has length 148 [2024-12-02 07:06:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:42,005 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 344 transitions. [2024-12-02 07:06:42,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 344 transitions. [2024-12-02 07:06:42,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:06:42,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:42,006 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:42,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:06:42,007 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2068856573, now seen corresponding path program 1 times [2024-12-02 07:06:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043515062] [2024-12-02 07:06:42,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:06:42,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043515062] [2024-12-02 07:06:42,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043515062] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:06:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529812314] [2024-12-02 07:06:42,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:42,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:42,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:42,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:06:42,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:06:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:42,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:06:42,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:42,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:06:42,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529812314] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:42,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:06:42,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-12-02 07:06:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931191569] [2024-12-02 07:06:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:42,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:06:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:42,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:06:42,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:42,467 INFO L87 Difference]: Start difference. First operand 261 states and 344 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:42,525 INFO L93 Difference]: Finished difference Result 537 states and 706 transitions. [2024-12-02 07:06:42,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:06:42,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-02 07:06:42,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:42,527 INFO L225 Difference]: With dead ends: 537 [2024-12-02 07:06:42,527 INFO L226 Difference]: Without dead ends: 279 [2024-12-02 07:06:42,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:42,528 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:42,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 865 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:06:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-12-02 07:06:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 264. [2024-12-02 07:06:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 228 states have (on average 1.2587719298245614) internal successors, (287), 230 states have internal predecessors, (287), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 07:06:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 347 transitions. [2024-12-02 07:06:42,551 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 347 transitions. Word has length 149 [2024-12-02 07:06:42,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:42,551 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 347 transitions. [2024-12-02 07:06:42,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:06:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 347 transitions. [2024-12-02 07:06:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:06:42,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:42,553 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:42,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:06:42,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 07:06:42,753 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:42,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -621698327, now seen corresponding path program 1 times [2024-12-02 07:06:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:42,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457865943] [2024-12-02 07:06:42,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:44,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457865943] [2024-12-02 07:06:44,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457865943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:44,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:44,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:06:44,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596927004] [2024-12-02 07:06:44,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:44,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:06:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:44,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:06:44,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:44,031 INFO L87 Difference]: Start difference. First operand 264 states and 347 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:06:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:44,620 INFO L93 Difference]: Finished difference Result 515 states and 672 transitions. [2024-12-02 07:06:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:44,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-12-02 07:06:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:44,623 INFO L225 Difference]: With dead ends: 515 [2024-12-02 07:06:44,623 INFO L226 Difference]: Without dead ends: 513 [2024-12-02 07:06:44,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:06:44,624 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 88 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:44,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 897 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:06:44,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-12-02 07:06:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 387. [2024-12-02 07:06:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 348 states have (on average 1.2614942528735633) internal successors, (439), 351 states have internal predecessors, (439), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 07:06:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 503 transitions. [2024-12-02 07:06:44,658 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 503 transitions. Word has length 149 [2024-12-02 07:06:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:44,658 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 503 transitions. [2024-12-02 07:06:44,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:06:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 503 transitions. [2024-12-02 07:06:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:06:44,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:44,660 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:44,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:06:44,660 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:44,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash 256648277, now seen corresponding path program 1 times [2024-12-02 07:06:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255358349] [2024-12-02 07:06:44,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:46,255 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:46,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255358349] [2024-12-02 07:06:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255358349] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:46,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:46,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:06:46,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994483956] [2024-12-02 07:06:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:46,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:06:46,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:46,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:06:46,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:06:46,257 INFO L87 Difference]: Start difference. First operand 387 states and 503 transitions. Second operand has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:46,910 INFO L93 Difference]: Finished difference Result 1061 states and 1374 transitions. [2024-12-02 07:06:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:06:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2024-12-02 07:06:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:46,912 INFO L225 Difference]: With dead ends: 1061 [2024-12-02 07:06:46,912 INFO L226 Difference]: Without dead ends: 677 [2024-12-02 07:06:46,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:06:46,913 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 54 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:46,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 639 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:06:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-12-02 07:06:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 541. [2024-12-02 07:06:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 502 states have (on average 1.2749003984063745) internal successors, (640), 505 states have internal predecessors, (640), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 07:06:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 704 transitions. [2024-12-02 07:06:46,939 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 704 transitions. Word has length 149 [2024-12-02 07:06:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:46,939 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 704 transitions. [2024-12-02 07:06:46,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 12.4) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:06:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 704 transitions. [2024-12-02 07:06:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:06:46,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:46,941 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:46,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:06:46,941 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:46,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1072057838, now seen corresponding path program 1 times [2024-12-02 07:06:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:46,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932219290] [2024-12-02 07:06:46,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:06:48,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:48,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932219290] [2024-12-02 07:06:48,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932219290] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:06:48,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:06:48,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:06:48,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153961431] [2024-12-02 07:06:48,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:06:48,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:06:48,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:48,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:06:48,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:06:48,765 INFO L87 Difference]: Start difference. First operand 541 states and 704 transitions. Second operand has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:51,012 INFO L93 Difference]: Finished difference Result 1298 states and 1688 transitions. [2024-12-02 07:06:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 07:06:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-12-02 07:06:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:51,014 INFO L225 Difference]: With dead ends: 1298 [2024-12-02 07:06:51,014 INFO L226 Difference]: Without dead ends: 760 [2024-12-02 07:06:51,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=1062, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 07:06:51,016 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 218 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:51,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2278 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 07:06:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-12-02 07:06:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 687. [2024-12-02 07:06:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 618 states have (on average 1.2718446601941749) internal successors, (786), 623 states have internal predecessors, (786), 56 states have call successors, (56), 12 states have call predecessors, (56), 12 states have return successors, (56), 51 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 07:06:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 898 transitions. [2024-12-02 07:06:51,056 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 898 transitions. Word has length 151 [2024-12-02 07:06:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:51,056 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 898 transitions. [2024-12-02 07:06:51,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 18 states have internal predecessors, (64), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:06:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 898 transitions. [2024-12-02 07:06:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:06:51,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:51,057 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:51,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:06:51,058 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash -906512689, now seen corresponding path program 1 times [2024-12-02 07:06:51,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:51,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854843706] [2024-12-02 07:06:51,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:51,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:06:52,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:06:52,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854843706] [2024-12-02 07:06:52,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854843706] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:06:52,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444488100] [2024-12-02 07:06:52,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:52,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:06:52,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:06:52,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:06:52,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:06:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:06:53,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 07:06:53,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:06:53,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 25 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2024-12-02 07:06:53,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:53,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 51 [2024-12-02 07:06:53,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2024-12-02 07:06:53,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:53,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:06:54,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:06:54,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:06:54,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:06:54,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:06:54,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 56 [2024-12-02 07:06:54,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:54,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 46 [2024-12-02 07:06:55,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:55,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:06:55,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:55,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 47 [2024-12-02 07:06:55,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2024-12-02 07:06:55,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 89 [2024-12-02 07:06:55,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2024-12-02 07:06:55,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:55,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 67 [2024-12-02 07:06:55,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:06:55,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 38 [2024-12-02 07:06:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 87 proven. 363 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 07:06:55,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:06:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:06:55,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444488100] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:06:55,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:06:55,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 31 [2024-12-02 07:06:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358998479] [2024-12-02 07:06:55,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:06:55,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 07:06:55,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:06:55,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 07:06:55,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:06:55,987 INFO L87 Difference]: Start difference. First operand 687 states and 898 transitions. Second operand has 31 states, 28 states have (on average 6.0) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 9 states have call predecessors, (54), 12 states have call successors, (54) [2024-12-02 07:06:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:06:59,247 INFO L93 Difference]: Finished difference Result 2238 states and 2892 transitions. [2024-12-02 07:06:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 07:06:59,248 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 6.0) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 9 states have call predecessors, (54), 12 states have call successors, (54) Word has length 151 [2024-12-02 07:06:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:06:59,254 INFO L225 Difference]: With dead ends: 2238 [2024-12-02 07:06:59,254 INFO L226 Difference]: Without dead ends: 1554 [2024-12-02 07:06:59,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=689, Invalid=3733, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 07:06:59,258 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 565 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:06:59,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 961 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 07:06:59,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2024-12-02 07:06:59,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1208. [2024-12-02 07:06:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1070 states have (on average 1.2598130841121495) internal successors, (1348), 1079 states have internal predecessors, (1348), 106 states have call successors, (106), 31 states have call predecessors, (106), 31 states have return successors, (106), 97 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:06:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1560 transitions. [2024-12-02 07:06:59,414 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1560 transitions. Word has length 151 [2024-12-02 07:06:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:06:59,414 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 1560 transitions. [2024-12-02 07:06:59,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 6.0) internal successors, (168), 31 states have internal predecessors, (168), 12 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 9 states have call predecessors, (54), 12 states have call successors, (54) [2024-12-02 07:06:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1560 transitions. [2024-12-02 07:06:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:06:59,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:06:59,416 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:06:59,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:06:59,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 07:06:59,617 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:06:59,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:06:59,617 INFO L85 PathProgramCache]: Analyzing trace with hash 303152595, now seen corresponding path program 1 times [2024-12-02 07:06:59,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:06:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623685379] [2024-12-02 07:06:59,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:06:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:06:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:07:00,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:00,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623685379] [2024-12-02 07:07:00,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623685379] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179605373] [2024-12-02 07:07:00,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:00,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:00,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:00,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:07:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:01,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 07:07:01,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:01,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:07:01,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:01,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:01,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:07:02,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:02,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 39 [2024-12-02 07:07:02,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 44 [2024-12-02 07:07:02,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 88 [2024-12-02 07:07:02,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 52 [2024-12-02 07:07:02,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:02,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 71 [2024-12-02 07:07:02,390 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:02,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 106 treesize of output 78 [2024-12-02 07:07:02,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:02,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 51 [2024-12-02 07:07:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 152 proven. 90 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 07:07:02,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:03,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:03,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 1 [2024-12-02 07:07:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-12-02 07:07:03,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179605373] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:07:03,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:07:03,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 14] total 36 [2024-12-02 07:07:03,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980394390] [2024-12-02 07:07:03,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:07:03,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 07:07:03,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:03,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 07:07:03,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=995, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 07:07:03,536 INFO L87 Difference]: Start difference. First operand 1208 states and 1560 transitions. Second operand has 36 states, 31 states have (on average 5.709677419354839) internal successors, (177), 36 states have internal predecessors, (177), 11 states have call successors, (54), 4 states have call predecessors, (54), 8 states have return successors, (54), 6 states have call predecessors, (54), 11 states have call successors, (54) [2024-12-02 07:07:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:05,809 INFO L93 Difference]: Finished difference Result 2430 states and 3096 transitions. [2024-12-02 07:07:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 07:07:05,810 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 31 states have (on average 5.709677419354839) internal successors, (177), 36 states have internal predecessors, (177), 11 states have call successors, (54), 4 states have call predecessors, (54), 8 states have return successors, (54), 6 states have call predecessors, (54), 11 states have call successors, (54) Word has length 151 [2024-12-02 07:07:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:05,814 INFO L225 Difference]: With dead ends: 2430 [2024-12-02 07:07:05,815 INFO L226 Difference]: Without dead ends: 1300 [2024-12-02 07:07:05,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=486, Invalid=1676, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 07:07:05,817 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 316 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:05,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1343 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 07:07:05,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-12-02 07:07:05,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1120. [2024-12-02 07:07:05,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 964 states have (on average 1.2406639004149378) internal successors, (1196), 973 states have internal predecessors, (1196), 106 states have call successors, (106), 49 states have call predecessors, (106), 49 states have return successors, (106), 97 states have call predecessors, (106), 106 states have call successors, (106) [2024-12-02 07:07:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1408 transitions. [2024-12-02 07:07:05,929 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1408 transitions. Word has length 151 [2024-12-02 07:07:05,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:05,930 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1408 transitions. [2024-12-02 07:07:05,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 31 states have (on average 5.709677419354839) internal successors, (177), 36 states have internal predecessors, (177), 11 states have call successors, (54), 4 states have call predecessors, (54), 8 states have return successors, (54), 6 states have call predecessors, (54), 11 states have call successors, (54) [2024-12-02 07:07:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1408 transitions. [2024-12-02 07:07:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 07:07:05,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:05,931 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:05,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:07:06,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 07:07:06,131 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:06,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1446665465, now seen corresponding path program 1 times [2024-12-02 07:07:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:06,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348973337] [2024-12-02 07:07:06,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:06,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:07:07,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:07,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348973337] [2024-12-02 07:07:07,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348973337] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:07,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791488656] [2024-12-02 07:07:07,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:07,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:07,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:07,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:07,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:07:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:07,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 07:07:07,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:07,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 07:07:07,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 07:07:07,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 63 [2024-12-02 07:07:07,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:07,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 101 [2024-12-02 07:07:07,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:07,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 53 [2024-12-02 07:07:07,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:07,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 73 [2024-12-02 07:07:07,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:07,917 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 106 treesize of output 40 [2024-12-02 07:07:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 311 proven. 30 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-12-02 07:07:07,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:07:08,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791488656] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:07:08,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:07:08,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 17 [2024-12-02 07:07:08,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260524503] [2024-12-02 07:07:08,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:07:08,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:07:08,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:08,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:07:08,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:07:08,243 INFO L87 Difference]: Start difference. First operand 1120 states and 1408 transitions. Second operand has 17 states, 14 states have (on average 10.0) internal successors, (140), 17 states have internal predecessors, (140), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 3 states have call predecessors, (47), 6 states have call successors, (47) [2024-12-02 07:07:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:10,118 INFO L93 Difference]: Finished difference Result 2144 states and 2656 transitions. [2024-12-02 07:07:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 07:07:10,119 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 10.0) internal successors, (140), 17 states have internal predecessors, (140), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 3 states have call predecessors, (47), 6 states have call successors, (47) Word has length 152 [2024-12-02 07:07:10,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:10,124 INFO L225 Difference]: With dead ends: 2144 [2024-12-02 07:07:10,124 INFO L226 Difference]: Without dead ends: 1110 [2024-12-02 07:07:10,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 302 SyntacticMatches, 9 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=451, Invalid=1711, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 07:07:10,126 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 368 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:10,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 503 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:07:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-12-02 07:07:10,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1059. [2024-12-02 07:07:10,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 888 states have (on average 1.2015765765765767) internal successors, (1067), 898 states have internal predecessors, (1067), 110 states have call successors, (110), 60 states have call predecessors, (110), 60 states have return successors, (110), 100 states have call predecessors, (110), 110 states have call successors, (110) [2024-12-02 07:07:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1287 transitions. [2024-12-02 07:07:10,338 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1287 transitions. Word has length 152 [2024-12-02 07:07:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:10,339 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1287 transitions. [2024-12-02 07:07:10,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 10.0) internal successors, (140), 17 states have internal predecessors, (140), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 3 states have call predecessors, (47), 6 states have call successors, (47) [2024-12-02 07:07:10,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1287 transitions. [2024-12-02 07:07:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 07:07:10,340 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:10,340 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:10,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 07:07:10,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 07:07:10,541 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:10,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:10,541 INFO L85 PathProgramCache]: Analyzing trace with hash 977273159, now seen corresponding path program 1 times [2024-12-02 07:07:10,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:10,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461475177] [2024-12-02 07:07:10,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:10,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 84 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-12-02 07:07:11,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461475177] [2024-12-02 07:07:11,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461475177] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:11,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939335443] [2024-12-02 07:07:11,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:11,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:07:11,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:11,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:07:11,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:07:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:12,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-02 07:07:12,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:12,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-12-02 07:07:12,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:12,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2024-12-02 07:07:12,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:12,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2024-12-02 07:07:12,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:12,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2024-12-02 07:07:12,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:12,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2024-12-02 07:07:12,756 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 53 treesize of output 34 [2024-12-02 07:07:12,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:12,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 48 [2024-12-02 07:07:13,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:13,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 48 [2024-12-02 07:07:13,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 66 [2024-12-02 07:07:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 379 proven. 120 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-02 07:07:13,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 93 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 07:07:14,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939335443] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:07:14,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:07:14,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 16] total 40 [2024-12-02 07:07:14,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198015314] [2024-12-02 07:07:14,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:07:14,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-12-02 07:07:14,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:14,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-12-02 07:07:14,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1256, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 07:07:14,784 INFO L87 Difference]: Start difference. First operand 1059 states and 1287 transitions. Second operand has 40 states, 30 states have (on average 4.866666666666666) internal successors, (146), 38 states have internal predecessors, (146), 20 states have call successors, (49), 5 states have call predecessors, (49), 11 states have return successors, (50), 12 states have call predecessors, (50), 20 states have call successors, (50) [2024-12-02 07:07:21,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:07:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:21,346 INFO L93 Difference]: Finished difference Result 1596 states and 1923 transitions. [2024-12-02 07:07:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 07:07:21,347 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 30 states have (on average 4.866666666666666) internal successors, (146), 38 states have internal predecessors, (146), 20 states have call successors, (49), 5 states have call predecessors, (49), 11 states have return successors, (50), 12 states have call predecessors, (50), 20 states have call successors, (50) Word has length 154 [2024-12-02 07:07:21,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:21,349 INFO L225 Difference]: With dead ends: 1596 [2024-12-02 07:07:21,349 INFO L226 Difference]: Without dead ends: 627 [2024-12-02 07:07:21,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=508, Invalid=1942, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 07:07:21,351 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 360 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:21,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 635 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1500 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-12-02 07:07:21,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-12-02 07:07:21,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 405. [2024-12-02 07:07:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 331 states have (on average 1.190332326283988) internal successors, (394), 332 states have internal predecessors, (394), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 07:07:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 486 transitions. [2024-12-02 07:07:21,426 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 486 transitions. Word has length 154 [2024-12-02 07:07:21,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:21,426 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 486 transitions. [2024-12-02 07:07:21,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 30 states have (on average 4.866666666666666) internal successors, (146), 38 states have internal predecessors, (146), 20 states have call successors, (49), 5 states have call predecessors, (49), 11 states have return successors, (50), 12 states have call predecessors, (50), 20 states have call successors, (50) [2024-12-02 07:07:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 486 transitions. [2024-12-02 07:07:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 07:07:21,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:21,428 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:21,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 07:07:21,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 07:07:21,629 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:21,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:21,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1437396814, now seen corresponding path program 1 times [2024-12-02 07:07:21,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:21,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259630732] [2024-12-02 07:07:21,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:21,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:07:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:07:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259630732] [2024-12-02 07:07:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259630732] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:07:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:07:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:07:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76200865] [2024-12-02 07:07:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:07:23,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:07:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:07:23,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:07:23,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:07:23,069 INFO L87 Difference]: Start difference. First operand 405 states and 486 transitions. Second operand has 9 states, 6 states have (on average 11.5) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:07:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:24,084 INFO L93 Difference]: Finished difference Result 697 states and 842 transitions. [2024-12-02 07:07:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:07:24,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 11.5) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) Word has length 156 [2024-12-02 07:07:24,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:24,087 INFO L225 Difference]: With dead ends: 697 [2024-12-02 07:07:24,087 INFO L226 Difference]: Without dead ends: 405 [2024-12-02 07:07:24,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:07:24,088 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 44 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:24,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 560 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:07:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-12-02 07:07:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-12-02 07:07:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 331 states have (on average 1.1812688821752266) internal successors, (391), 332 states have internal predecessors, (391), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 07:07:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 483 transitions. [2024-12-02 07:07:24,180 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 483 transitions. Word has length 156 [2024-12-02 07:07:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:24,181 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 483 transitions. [2024-12-02 07:07:24,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 11.5) internal successors, (69), 9 states have internal predecessors, (69), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:07:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 483 transitions. [2024-12-02 07:07:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 07:07:24,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:24,182 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:24,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:07:24,182 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:24,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1113914987, now seen corresponding path program 1 times [2024-12-02 07:07:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:07:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325444575] [2024-12-02 07:07:24,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:07:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:07:24,271 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:07:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:07:24,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:07:24,381 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:07:24,381 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 07:07:24,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:07:24,386 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:24,435 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:07:24,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:07:24 BoogieIcfgContainer [2024-12-02 07:07:24,438 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:07:24,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:07:24,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:07:24,438 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:07:24,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:05:57" (3/4) ... [2024-12-02 07:07:24,440 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:07:24,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:07:24,441 INFO L158 Benchmark]: Toolchain (without parser) took 87559.84ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 116.2MB in the beginning and 469.0MB in the end (delta: -352.8MB). Peak memory consumption was 683.1MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.79ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 99.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.99ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 95.3MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: Boogie Preprocessor took 53.72ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 92.0MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: RCFGBuilder took 724.12ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 59.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,442 INFO L158 Benchmark]: TraceAbstraction took 86447.96ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 59.0MB in the beginning and 469.1MB in the end (delta: -410.1MB). Peak memory consumption was 616.0MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,443 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 1.2GB. Free memory was 469.1MB in the beginning and 469.0MB in the end (delta: 104.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:07:24,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.79ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 99.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.99ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 95.3MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.72ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 92.0MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 724.12ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 59.6MB in the end (delta: 32.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 86447.96ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 59.0MB in the beginning and 469.1MB in the end (delta: -410.1MB). Peak memory consumption was 616.0MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 1.2GB. Free memory was 469.1MB in the beginning and 469.0MB in the end (delta: 104.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 64, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 119, overapproximation of someBinaryDOUBLEComparisonOperation at line 119. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 5, 1456677701, 1000000000, 1, 0, 0, 0, 256.5, 8.8, 1, 16, 3110219175, 128, 1, 0 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L123] isInitial = 1 [L124] FCALL initially() [L126] FCALL updateLastVariables() [L127] CALL updateVariables() [L87] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ulong() [L88] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1] [L89] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L94] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_9 = __VERIFIER_nondet_double() [L100] EXPR WrapperStruct00.var_1_9 [L100] EXPR WrapperStruct00.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L100] EXPR WrapperStruct00.var_1_9 [L100] EXPR WrapperStruct00.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L100] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L100] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] WrapperStruct00.var_1_10 = __VERIFIER_nondet_double() [L102] EXPR WrapperStruct00.var_1_10 [L102] EXPR WrapperStruct00.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L102] EXPR WrapperStruct00.var_1_10 [L102] EXPR WrapperStruct00.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L102] EXPR (WrapperStruct00.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L102] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L103] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L104] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L106] WrapperStruct00.var_1_13 = __VERIFIER_nondet_ulong() [L107] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] WrapperStruct00.var_1_14 = __VERIFIER_nondet_ushort() [L110] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1] [L112] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L127] RET updateVariables() [L128] CALL step() [L60] EXPR WrapperStruct00.var_1_7 [L60] WrapperStruct00.var_1_6 = WrapperStruct00.var_1_7 [L61] EXPR WrapperStruct00.var_1_5 [L61] EXPR WrapperStruct00.var_1_13 [L61] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L61] COND TRUE WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4) [L62] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L62] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) [L62] EXPR WrapperStruct00.var_1_14 [L62] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] WrapperStruct00.var_1_12 = ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L64] COND FALSE !((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) [L67] EXPR WrapperStruct00.var_1_11 [L67] EXPR WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16 [L67] EXPR WrapperStruct00.var_1_16 [L67] EXPR WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L67] WrapperStruct00.var_1_15 = (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16) [L69] EXPR WrapperStruct00.var_1_12 [L69] EXPR WrapperStruct00.var_1_3 [L69] EXPR WrapperStruct00.var_1_4 [L69] EXPR WrapperStruct00.var_1_12 [L69] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))) [L70] EXPR WrapperStruct00.var_1_12 [L70] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L70] EXPR ((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12) [L70] EXPR WrapperStruct00.var_1_12 [L70] EXPR ((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12) VAL [WrapperStruct00={4:0}, isInitial=1] [L70] signed long int stepLocal_1 = (((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12)); [L71] EXPR WrapperStruct00.var_1_3 [L71] unsigned long int stepLocal_0 = WrapperStruct00.var_1_3; [L72] EXPR WrapperStruct00.var_1_4 [L72] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=-3221225472, stepLocal_1=6] [L72] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3) [L72] EXPR WrapperStruct00.var_1_4 [L72] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=-3221225472, stepLocal_1=6] [L72] COND TRUE stepLocal_1 != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3))) [L73] EXPR WrapperStruct00.var_1_9 [L73] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=-3221225472] [L73] COND FALSE !(WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) [L128] RET step() [L129] CALL, EXPR property() [L119] EXPR WrapperStruct00.var_1_1 [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR WrapperStruct00.var_1_3 [L119] EXPR WrapperStruct00.var_1_4 [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7)) [L119] EXPR WrapperStruct00.var_1_6 [L119] EXPR WrapperStruct00.var_1_7 [L119] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7)) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11))) [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12) [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR ((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR WrapperStruct00.var_1_4 [L119] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3) [L119] EXPR WrapperStruct00.var_1_4 [L119] EXPR ((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)) [L119] EXPR WrapperStruct00.var_1_9 [L119] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)))) && ((WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1) [L119] EXPR WrapperStruct00.var_1_5 [L119] EXPR WrapperStruct00.var_1_13 [L119] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1 [L119] EXPR WrapperStruct00.var_1_12 [L119] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) [L119] EXPR WrapperStruct00.var_1_14 [L119] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR (((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)))) && ((WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)))) && ((WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1)) && (((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_15 == ((unsigned char) (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16)))) [L119] EXPR WrapperStruct00.var_1_9 [L119] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_15 == ((unsigned char) (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16))) [L119] EXPR WrapperStruct00.var_1_15 [L119] EXPR WrapperStruct00.var_1_11 [L119] EXPR ((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_15 == ((unsigned char) (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119] EXPR ((((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)))) && ((WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1)) && (((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_15 == ((unsigned char) (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16)))) VAL [WrapperStruct00={4:0}, isInitial=1] [L119-L120] return ((((WrapperStruct00.var_1_1 == ((unsigned long int) (WrapperStruct00.var_1_12 + (WrapperStruct00.var_1_3 - (WrapperStruct00.var_1_4 - WrapperStruct00.var_1_12))))) && (WrapperStruct00.var_1_6 == ((unsigned char) WrapperStruct00.var_1_7))) && ((((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_12))) != ((((WrapperStruct00.var_1_4) < (WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_3)))) ? ((WrapperStruct00.var_1_9 == WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_6 ? ((WrapperStruct00.var_1_3 >= WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_8 == ((unsigned char) (WrapperStruct00.var_1_7 || WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_7))) : 1) : 1) : (WrapperStruct00.var_1_8 == ((unsigned char) WrapperStruct00.var_1_11)))) && ((WrapperStruct00.var_1_5 <= (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)) ? (WrapperStruct00.var_1_12 == ((unsigned short int) ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14))))) : 1)) && (((WrapperStruct00.var_1_9 * 16.5f) > WrapperStruct00.var_1_10) ? (WrapperStruct00.var_1_15 == ((unsigned char) (! WrapperStruct00.var_1_11))) : (WrapperStruct00.var_1_15 == ((unsigned char) (WrapperStruct00.var_1_11 && WrapperStruct00.var_1_16)))) ; [L129] RET, EXPR property() [L129] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 112 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 86.3s, OverallIterations: 27, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3769 SdHoareTripleChecker+Valid, 27.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3726 mSDsluCounter, 19321 SdHoareTripleChecker+Invalid, 25.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16185 mSDsCounter, 549 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20797 IncrementalHoareTripleChecker+Invalid, 21347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 549 mSolverCounterUnsat, 3136 mSDtfsCounter, 20797 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2470 GetRequests, 2026 SyntacticMatches, 10 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3074 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1208occurred in iteration=22, InterpolantAutomatonStates: 350, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 1773 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 43.9s InterpolantComputationTime, 5173 NumberOfCodeBlocks, 5173 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 5585 ConstructedInterpolants, 0 QuantifiedInterpolants, 41396 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4468 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 38 InterpolantComputations, 22 PerfectInterpolantSequences, 22010/23256 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 07:07:24,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/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_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/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 a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:07:26,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:07:26,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 07:07:26,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:07:26,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:07:26,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:07:26,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:07:26,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:07:26,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:07:26,527 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:07:26,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:07:26,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:07:26,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:07:26,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:07:26,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:07:26,529 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:07:26,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:07:26,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:07:26,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:07:26,530 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:07:26,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:07:26,531 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_ca987be8-9adb-497e-ad23-df3aa4638573/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 -> a57c51c3c35fc35fae3b673a01ba8d307f47b0272dfabe8304d0498d3ff6eff6 [2024-12-02 07:07:26,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:07:26,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:07:26,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:07:26,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:07:26,810 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:07:26,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:07:29,472 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/9f7cc50f7/575037e170134e55a1e85e0a9b4c5968/FLAG8bb527e57 [2024-12-02 07:07:29,672 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:07:29,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:07:29,681 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/9f7cc50f7/575037e170134e55a1e85e0a9b4c5968/FLAG8bb527e57 [2024-12-02 07:07:30,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/data/9f7cc50f7/575037e170134e55a1e85e0a9b4c5968 [2024-12-02 07:07:30,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:07:30,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:07:30,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:07:30,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:07:30,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:07:30,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5468bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30, skipping insertion in model container [2024-12-02 07:07:30,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:07:30,192 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_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i[916,929] [2024-12-02 07:07:30,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:07:30,245 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:07:30,256 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_ca987be8-9adb-497e-ad23-df3aa4638573/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-53.i[916,929] [2024-12-02 07:07:30,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:07:30,319 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:07:30,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30 WrapperNode [2024-12-02 07:07:30,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:07:30,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:07:30,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:07:30,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:07:30,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,374 INFO L138 Inliner]: procedures = 37, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2024-12-02 07:07:30,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:07:30,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:07:30,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:07:30,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:07:30,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,409 INFO L175 MemorySlicer]: Split 134 memory accesses to 2 slices as follows [2, 132]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 34 writes are split as follows [0, 34]. [2024-12-02 07:07:30,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,431 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:07:30,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:07:30,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:07:30,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:07:30,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (1/1) ... [2024-12-02 07:07:30,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:07:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:07:30,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:07:30,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:07:30,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 07:07:30,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:07:30,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:07:30,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 07:07:30,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 07:07:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 07:07:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 07:07:30,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 07:07:30,630 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:07:30,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:07:31,544 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-12-02 07:07:31,544 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:07:31,555 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:07:31,556 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:07:31,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:31 BoogieIcfgContainer [2024-12-02 07:07:31,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:07:31,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:07:31,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:07:31,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:07:31,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:07:30" (1/3) ... [2024-12-02 07:07:31,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccdb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:31, skipping insertion in model container [2024-12-02 07:07:31,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:30" (2/3) ... [2024-12-02 07:07:31,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fccdb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:31, skipping insertion in model container [2024-12-02 07:07:31,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:31" (3/3) ... [2024-12-02 07:07:31,564 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-53.i [2024-12-02 07:07:31,586 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:07:31,587 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-53.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:07:31,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:07:31,641 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;@28f5edd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:07:31,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:07:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:07:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:07:31,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:31,657 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:31,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:31,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:31,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1513522922, now seen corresponding path program 1 times [2024-12-02 07:07:31,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:07:31,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597381771] [2024-12-02 07:07:31,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:31,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:07:31,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:07:31,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:07:31,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 07:07:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:32,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:07:32,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-02 07:07:32,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:07:32,093 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:07:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597381771] [2024-12-02 07:07:32,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597381771] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:07:32,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:07:32,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:07:32,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394981315] [2024-12-02 07:07:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:07:32,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:07:32,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:07:32,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:07:32,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:07:32,122 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:07:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:32,149 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-12-02 07:07:32,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:07:32,151 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-12-02 07:07:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:32,157 INFO L225 Difference]: With dead ends: 217 [2024-12-02 07:07:32,157 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:07:32,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:07:32,162 INFO L435 NwaCegarLoop]: 155 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, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:32,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:07:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:07:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:07:32,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:07:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-12-02 07:07:32,198 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-12-02 07:07:32,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:32,198 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-12-02 07:07:32,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:07:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-12-02 07:07:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:07:32,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:32,202 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:32,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 07:07:32,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:07:32,402 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:32,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:32,403 INFO L85 PathProgramCache]: Analyzing trace with hash -202382474, now seen corresponding path program 1 times [2024-12-02 07:07:32,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:07:32,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237734613] [2024-12-02 07:07:32,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:32,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:07:32,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:07:32,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:07:32,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 07:07:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:32,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:07:32,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:32,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 07:07:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:07:32,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:07:32,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:07:32,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237734613] [2024-12-02 07:07:32,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237734613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:07:32,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:07:32,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:07:32,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612116977] [2024-12-02 07:07:32,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:07:32,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:07:32,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:07:32,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:07:32,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:07:32,845 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:07:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:07:32,894 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-12-02 07:07:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:07:32,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-12-02 07:07:32,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:07:32,897 INFO L225 Difference]: With dead ends: 213 [2024-12-02 07:07:32,897 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:07:32,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:07:32,899 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:07:32,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:07:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:07:32,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:07:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:07:32,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-12-02 07:07:32,910 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-12-02 07:07:32,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:07:32,911 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-12-02 07:07:32,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:07:32,912 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-12-02 07:07:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:07:32,914 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:07:32,914 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:07:32,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 07:07:33,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:07:33,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:07:33,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:07:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1223450828, now seen corresponding path program 1 times [2024-12-02 07:07:33,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:07:33,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831033047] [2024-12-02 07:07:33,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:33,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:07:33,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:07:33,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:07:33,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 07:07:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:33,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 07:07:33,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:33,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 07:07:33,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-12-02 07:07:33,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-12-02 07:07:34,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 16 [2024-12-02 07:07:34,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2024-12-02 07:07:36,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:36,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 29 [2024-12-02 07:07:36,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:36,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 29 [2024-12-02 07:07:36,971 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:36,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 07:07:37,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:37,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-12-02 07:07:37,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:37,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 75 [2024-12-02 07:07:37,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:37,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 78 [2024-12-02 07:07:37,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:37,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 112 treesize of output 114 [2024-12-02 07:07:38,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:38,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 117 treesize of output 41 [2024-12-02 07:07:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 434 proven. 84 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-12-02 07:07:38,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:07:39,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:07:39,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831033047] [2024-12-02 07:07:39,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831033047] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:07:39,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [920996259] [2024-12-02 07:07:39,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:07:39,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:07:39,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:07:39,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:07:39,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-02 07:07:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:07:39,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 07:07:39,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:07:40,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:07:42,841 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 30 treesize of output 14 [2024-12-02 07:07:42,953 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 27 treesize of output 22 [2024-12-02 07:07:45,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:45,776 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 1 case distinctions, treesize of input 42 treesize of output 33 [2024-12-02 07:07:51,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:51,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 36 [2024-12-02 07:07:51,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:51,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:07:51,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:51,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:07:51,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:51,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:07:51,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:51,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:07:52,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:52,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 45 [2024-12-02 07:07:54,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:54,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 49 [2024-12-02 07:07:54,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:07:54,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 81 [2024-12-02 07:08:05,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:08:05,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 82 treesize of output 38 [2024-12-02 07:08:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 334 proven. 84 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 07:08:05,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:08:05,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [920996259] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:08:05,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:08:05,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2024-12-02 07:08:05,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992093714] [2024-12-02 07:08:05,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:08:05,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 07:08:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:08:05,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 07:08:05,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1112, Unknown=9, NotChecked=0, Total=1332 [2024-12-02 07:08:05,832 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 33 states, 29 states have (on average 4.344827586206897) internal successors, (126), 31 states have internal predecessors, (126), 13 states have call successors, (36), 11 states have call predecessors, (36), 13 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) [2024-12-02 07:08:10,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:16,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:19,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:25,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:31,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:33,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:36,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:39,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:42,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:44,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:50,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:52,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:55,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:08:58,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:00,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:03,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:11,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:14,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:23,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:27,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:30,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:34,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:38,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:41,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:44,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:47,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:50,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:54,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:09:57,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:01,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:12,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:16,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:19,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:22,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:26,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:30,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:33,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:37,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:40,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:44,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:48,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:52,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:56,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:10:59,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:11:12,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:11:15,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:11:28,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:11:32,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:12:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:12:55,659 INFO L93 Difference]: Finished difference Result 256 states and 341 transitions. [2024-12-02 07:12:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 07:12:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 4.344827586206897) internal successors, (126), 31 states have internal predecessors, (126), 13 states have call successors, (36), 11 states have call predecessors, (36), 13 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) Word has length 140 [2024-12-02 07:12:55,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:12:55,662 INFO L225 Difference]: With dead ends: 256 [2024-12-02 07:12:55,662 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 07:12:55,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 293 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 146.7s TimeCoverageRelationStatistics Valid=764, Invalid=3353, Unknown=43, NotChecked=0, Total=4160 [2024-12-02 07:12:55,665 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 255 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 62 mSolverCounterUnsat, 48 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 48 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 170.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:12:55,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 741 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1500 Invalid, 48 Unknown, 0 Unchecked, 170.7s Time] [2024-12-02 07:12:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 07:12:55,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 141. [2024-12-02 07:12:55,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 113 states have (on average 1.2654867256637168) internal successors, (143), 113 states have internal predecessors, (143), 18 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:12:55,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 179 transitions. [2024-12-02 07:12:55,691 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 179 transitions. Word has length 140 [2024-12-02 07:12:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:12:55,691 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 179 transitions. [2024-12-02 07:12:55,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 4.344827586206897) internal successors, (126), 31 states have internal predecessors, (126), 13 states have call successors, (36), 11 states have call predecessors, (36), 13 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) [2024-12-02 07:12:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 179 transitions. [2024-12-02 07:12:55,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:12:55,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:12:55,695 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:12:55,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-12-02 07:12:55,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 07:12:56,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:12:56,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:12:56,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:12:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2060399218, now seen corresponding path program 1 times [2024-12-02 07:12:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:12:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266508031] [2024-12-02 07:12:56,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:12:56,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 07:12:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 07:12:56,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 07:12:56,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 07:12:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:12:56,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 07:12:56,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:12:56,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 07:12:56,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-12-02 07:12:56,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-12-02 07:12:56,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-12-02 07:12:57,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2024-12-02 07:13:01,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:01,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 42 [2024-12-02 07:13:01,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:01,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-12-02 07:13:01,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:01,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-12-02 07:13:02,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:02,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-12-02 07:13:02,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:02,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-12-02 07:13:02,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:02,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 62 [2024-12-02 07:13:02,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:02,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 65 [2024-12-02 07:13:02,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:02,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 101 [2024-12-02 07:13:03,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:03,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 107 treesize of output 37 [2024-12-02 07:13:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 276 proven. 96 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-12-02 07:13:03,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:13:03,878 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:13:03,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266508031] [2024-12-02 07:13:03,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266508031] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:13:03,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94760313] [2024-12-02 07:13:03,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:03,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 07:13:03,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 07:13:03,880 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 07:13:03,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca987be8-9adb-497e-ad23-df3aa4638573/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-02 07:13:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:13:05,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 07:13:05,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:13:05,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:13:09,930 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 30 treesize of output 14 [2024-12-02 07:13:10,067 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 30 treesize of output 14 [2024-12-02 07:13:10,207 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 30 treesize of output 14 [2024-12-02 07:13:10,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2024-12-02 07:13:18,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:18,649 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 1 case distinctions, treesize of input 42 treesize of output 33 [2024-12-02 07:13:30,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:30,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:13:31,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:31,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:13:31,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:31,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 44 [2024-12-02 07:13:35,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:35,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 55 [2024-12-02 07:13:40,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:40,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 74 [2024-12-02 07:13:48,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:48,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 77 [2024-12-02 07:13:48,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:13:48,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 98 treesize of output 109 [2024-12-02 07:14:59,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:14:59,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 155 treesize of output 75 [2024-12-02 07:14:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 408 proven. 96 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-12-02 07:14:59,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:15:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [94760313] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:15:00,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:15:00,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2024-12-02 07:15:00,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438387921] [2024-12-02 07:15:00,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:15:00,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 07:15:00,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:15:00,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 07:15:00,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1091, Unknown=22, NotChecked=0, Total=1332 [2024-12-02 07:15:00,320 INFO L87 Difference]: Start difference. First operand 141 states and 179 transitions. Second operand has 33 states, 29 states have (on average 4.137931034482759) internal successors, (120), 31 states have internal predecessors, (120), 11 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 07:15:21,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:25,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:29,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:44,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:48,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:52,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:55,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:15:59,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:03,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:07,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:11,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:15,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:30,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:34,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:38,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:54,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:16:58,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:01,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:05,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:09,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:13,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:16,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:20,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:24,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:28,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:32,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:36,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:40,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:44,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:48,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:51,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:55,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:17:59,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:03,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:07,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:11,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:14,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:18,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:22,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:37,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:41,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:44,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:48,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:52,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:56,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:18:59,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:03,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:07,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:11,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:15,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:19,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:22,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:26,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:30,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:34,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:38,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:42,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:45,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:49,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:52,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:19:56,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:20:00,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:20:03,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:20:06,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 07:20:10,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]