./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/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 8cc1254b56c35a5957910a792c61c07dcc83238ffe78e59788d87f7ad9ed5713 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:42:32,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:42:32,683 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:42:32,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:42:32,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:42:32,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:42:32,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:42:32,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:42:32,710 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:42:32,710 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:42:32,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:42:32,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:42:32,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:42:32,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:42:32,710 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:42:32,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:42:32,711 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:42:32,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:42:32,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:42:32,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:42:32,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:42:32,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:42:32,713 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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/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 -> 8cc1254b56c35a5957910a792c61c07dcc83238ffe78e59788d87f7ad9ed5713 [2024-12-02 08:42:32,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:42:32,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:42:32,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:42:32,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:42:32,955 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:42:32,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.i [2024-12-02 08:42:35,629 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/data/d8a79d0fc/06c84cff6b8f4264af548a6fa5f4d2a4/FLAG94bad3f53 [2024-12-02 08:42:35,848 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:42:35,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.i [2024-12-02 08:42:35,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/data/d8a79d0fc/06c84cff6b8f4264af548a6fa5f4d2a4/FLAG94bad3f53 [2024-12-02 08:42:35,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/data/d8a79d0fc/06c84cff6b8f4264af548a6fa5f4d2a4 [2024-12-02 08:42:35,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:42:35,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:42:35,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:42:35,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:42:35,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:42:35,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:42:35" (1/1) ... [2024-12-02 08:42:35,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a87ad69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:35, skipping insertion in model container [2024-12-02 08:42:35,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:42:35" (1/1) ... [2024-12-02 08:42:35,898 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:42:36,035 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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.i[917,930] [2024-12-02 08:42:36,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:42:36,098 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:42:36,107 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_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-76.i[917,930] [2024-12-02 08:42:36,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:42:36,153 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:42:36,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36 WrapperNode [2024-12-02 08:42:36,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:42:36,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:42:36,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:42:36,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:42:36,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,199 INFO L138 Inliner]: procedures = 30, calls = 134, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 423 [2024-12-02 08:42:36,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:42:36,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:42:36,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:42:36,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:42:36,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,219 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 08:42:36,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,230 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:42:36,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:42:36,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:42:36,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:42:36,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (1/1) ... [2024-12-02 08:42:36,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:42:36,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:36,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:42:36,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 08:42:36,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:42:36,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:42:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 08:42:36,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:42:36,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:42:36,386 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:42:36,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:42:36,833 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-12-02 08:42:36,833 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:42:36,844 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:42:36,844 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:42:36,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:42:36 BoogieIcfgContainer [2024-12-02 08:42:36,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:42:36,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:42:36,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:42:36,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:42:36,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:42:35" (1/3) ... [2024-12-02 08:42:36,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd93d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:42:36, skipping insertion in model container [2024-12-02 08:42:36,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:42:36" (2/3) ... [2024-12-02 08:42:36,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbd93d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:42:36, skipping insertion in model container [2024-12-02 08:42:36,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:42:36" (3/3) ... [2024-12-02 08:42:36,853 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-76.i [2024-12-02 08:42:36,865 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:42:36,867 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-76.i that has 2 procedures, 102 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:42:36,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:42:36,924 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;@678ccba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:42:36,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:42:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:42:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 08:42:36,938 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:36,939 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:36,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:36,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:36,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2020212237, now seen corresponding path program 1 times [2024-12-02 08:42:36,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:36,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96145446] [2024-12-02 08:42:36,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:36,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 08:42:37,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:37,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96145446] [2024-12-02 08:42:37,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96145446] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:37,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028059328] [2024-12-02 08:42:37,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:37,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:37,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:37,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:37,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:42:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:37,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:42:37,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 08:42:37,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:37,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028059328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:37,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:37,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:42:37,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489425804] [2024-12-02 08:42:37,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:37,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:42:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:37,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:42:37,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:42:37,496 INFO L87 Difference]: Start difference. First operand has 102 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:37,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:37,518 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2024-12-02 08:42:37,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:42:37,519 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2024-12-02 08:42:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:37,524 INFO L225 Difference]: With dead ends: 193 [2024-12-02 08:42:37,524 INFO L226 Difference]: Without dead ends: 94 [2024-12-02 08:42:37,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 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 08:42:37,529 INFO L435 NwaCegarLoop]: 133 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, 133 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 08:42:37,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:37,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-12-02 08:42:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-12-02 08:42:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:42:37,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2024-12-02 08:42:37,561 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 119 [2024-12-02 08:42:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:37,562 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2024-12-02 08:42:37,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:37,562 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2024-12-02 08:42:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 08:42:37,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:37,564 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:37,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:42:37,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:37,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:37,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 189444987, now seen corresponding path program 1 times [2024-12-02 08:42:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:37,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946626403] [2024-12-02 08:42:37,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:38,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:38,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946626403] [2024-12-02 08:42:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946626403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:38,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:38,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:42:38,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508458583] [2024-12-02 08:42:38,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:38,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:42:38,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:38,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:42:38,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:42:38,050 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:38,087 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2024-12-02 08:42:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:42:38,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2024-12-02 08:42:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:38,089 INFO L225 Difference]: With dead ends: 187 [2024-12-02 08:42:38,089 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 08:42:38,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:42:38,091 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:38,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 08:42:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-12-02 08:42:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:42:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 135 transitions. [2024-12-02 08:42:38,101 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 135 transitions. Word has length 119 [2024-12-02 08:42:38,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:38,102 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 135 transitions. [2024-12-02 08:42:38,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 135 transitions. [2024-12-02 08:42:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 08:42:38,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:38,105 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:38,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:42:38,105 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:38,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:38,106 INFO L85 PathProgramCache]: Analyzing trace with hash -649588675, now seen corresponding path program 1 times [2024-12-02 08:42:38,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:38,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008507486] [2024-12-02 08:42:38,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:38,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008507486] [2024-12-02 08:42:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008507486] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:38,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:42:38,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428331892] [2024-12-02 08:42:38,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:38,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:42:38,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:38,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:42:38,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:42:38,286 INFO L87 Difference]: Start difference. First operand 96 states and 135 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:38,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:38,307 INFO L93 Difference]: Finished difference Result 189 states and 267 transitions. [2024-12-02 08:42:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:42:38,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2024-12-02 08:42:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:38,309 INFO L225 Difference]: With dead ends: 189 [2024-12-02 08:42:38,309 INFO L226 Difference]: Without dead ends: 96 [2024-12-02 08:42:38,310 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 08:42:38,311 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:38,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-12-02 08:42:38,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-12-02 08:42:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 79 states have internal predecessors, (104), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 08:42:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 134 transitions. [2024-12-02 08:42:38,320 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 134 transitions. Word has length 119 [2024-12-02 08:42:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:38,320 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 134 transitions. [2024-12-02 08:42:38,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2024-12-02 08:42:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:42:38,323 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:38,323 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:38,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:42:38,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:38,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 4751163, now seen corresponding path program 1 times [2024-12-02 08:42:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784771428] [2024-12-02 08:42:38,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:38,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:38,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784771428] [2024-12-02 08:42:38,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784771428] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:38,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:38,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:42:38,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851833879] [2024-12-02 08:42:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:38,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:42:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:38,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:42:38,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:42:38,694 INFO L87 Difference]: Start difference. First operand 96 states and 134 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:39,004 INFO L93 Difference]: Finished difference Result 283 states and 397 transitions. [2024-12-02 08:42:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:42:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2024-12-02 08:42:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:39,007 INFO L225 Difference]: With dead ends: 283 [2024-12-02 08:42:39,007 INFO L226 Difference]: Without dead ends: 190 [2024-12-02 08:42:39,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:42:39,008 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 100 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:39,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 393 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:39,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-12-02 08:42:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 141. [2024-12-02 08:42:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 108 states have (on average 1.2592592592592593) internal successors, (136), 108 states have internal predecessors, (136), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 196 transitions. [2024-12-02 08:42:39,030 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 196 transitions. Word has length 120 [2024-12-02 08:42:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:39,031 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 196 transitions. [2024-12-02 08:42:39,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 196 transitions. [2024-12-02 08:42:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 08:42:39,033 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:39,033 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:39,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:42:39,034 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:39,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:39,034 INFO L85 PathProgramCache]: Analyzing trace with hash 427452989, now seen corresponding path program 1 times [2024-12-02 08:42:39,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:39,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553689638] [2024-12-02 08:42:39,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:39,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:41,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:41,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553689638] [2024-12-02 08:42:41,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553689638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:41,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:41,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:42:41,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680856190] [2024-12-02 08:42:41,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:41,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:42:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:41,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:42:41,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:42:41,811 INFO L87 Difference]: Start difference. First operand 141 states and 196 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:42,579 INFO L93 Difference]: Finished difference Result 284 states and 397 transitions. [2024-12-02 08:42:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:42:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2024-12-02 08:42:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:42,582 INFO L225 Difference]: With dead ends: 284 [2024-12-02 08:42:42,582 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 08:42:42,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:42:42,583 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 281 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:42,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 408 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:42:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 08:42:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2024-12-02 08:42:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 125 states have (on average 1.28) internal successors, (160), 125 states have internal predecessors, (160), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 220 transitions. [2024-12-02 08:42:42,607 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 220 transitions. Word has length 120 [2024-12-02 08:42:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:42,608 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 220 transitions. [2024-12-02 08:42:42,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 220 transitions. [2024-12-02 08:42:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:42:42,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:42,610 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:42,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:42:42,610 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:42,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:42,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1480347512, now seen corresponding path program 1 times [2024-12-02 08:42:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:42,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269207272] [2024-12-02 08:42:42,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:42,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:42,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269207272] [2024-12-02 08:42:42,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269207272] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:42,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:42,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:42:42,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972079293] [2024-12-02 08:42:42,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:42,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:42:42,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:42,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:42:42,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:42:42,750 INFO L87 Difference]: Start difference. First operand 158 states and 220 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:42,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:42,774 INFO L93 Difference]: Finished difference Result 268 states and 375 transitions. [2024-12-02 08:42:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:42:42,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-12-02 08:42:42,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:42,777 INFO L225 Difference]: With dead ends: 268 [2024-12-02 08:42:42,777 INFO L226 Difference]: Without dead ends: 158 [2024-12-02 08:42:42,777 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 08:42:42,778 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 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 08:42:42,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-12-02 08:42:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-12-02 08:42:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 125 states have (on average 1.272) internal successors, (159), 125 states have internal predecessors, (159), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 219 transitions. [2024-12-02 08:42:42,810 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 219 transitions. Word has length 122 [2024-12-02 08:42:42,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:42,810 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 219 transitions. [2024-12-02 08:42:42,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 219 transitions. [2024-12-02 08:42:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:42:42,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:42,812 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:42,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:42:42,812 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:42,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash -725682600, now seen corresponding path program 1 times [2024-12-02 08:42:42,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:42,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688985915] [2024-12-02 08:42:42,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:42,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:43,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688985915] [2024-12-02 08:42:43,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688985915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:43,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:43,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:42:43,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049527893] [2024-12-02 08:42:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:43,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:42:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:43,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:42:43,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:42:43,260 INFO L87 Difference]: Start difference. First operand 158 states and 219 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:43,606 INFO L93 Difference]: Finished difference Result 274 states and 383 transitions. [2024-12-02 08:42:43,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:43,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-12-02 08:42:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:43,608 INFO L225 Difference]: With dead ends: 274 [2024-12-02 08:42:43,609 INFO L226 Difference]: Without dead ends: 164 [2024-12-02 08:42:43,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:42:43,610 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 93 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:43,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 374 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-12-02 08:42:43,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2024-12-02 08:42:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 127 states have (on average 1.2677165354330708) internal successors, (161), 127 states have internal predecessors, (161), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:43,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 221 transitions. [2024-12-02 08:42:43,633 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 221 transitions. Word has length 122 [2024-12-02 08:42:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:43,633 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 221 transitions. [2024-12-02 08:42:43,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:43,634 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 221 transitions. [2024-12-02 08:42:43,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 08:42:43,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:43,635 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:43,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:42:43,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:43,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:43,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1213675190, now seen corresponding path program 1 times [2024-12-02 08:42:43,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:43,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362330041] [2024-12-02 08:42:43,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:43,876 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 08:42:43,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:43,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362330041] [2024-12-02 08:42:43,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362330041] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:43,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322307620] [2024-12-02 08:42:43,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:43,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:43,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:43,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:42:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:44,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:42:44,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:44,150 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:44,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322307620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:44,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:44,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 08:42:44,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186624168] [2024-12-02 08:42:44,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:44,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:42:44,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:44,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:42:44,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:42:44,152 INFO L87 Difference]: Start difference. First operand 160 states and 221 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:44,207 INFO L93 Difference]: Finished difference Result 276 states and 382 transitions. [2024-12-02 08:42:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:44,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-12-02 08:42:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:44,210 INFO L225 Difference]: With dead ends: 276 [2024-12-02 08:42:44,210 INFO L226 Difference]: Without dead ends: 164 [2024-12-02 08:42:44,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 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 08:42:44,211 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:44,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 615 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:44,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-12-02 08:42:44,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-12-02 08:42:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 131 states have internal predecessors, (165), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:44,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 225 transitions. [2024-12-02 08:42:44,233 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 225 transitions. Word has length 124 [2024-12-02 08:42:44,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:44,234 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 225 transitions. [2024-12-02 08:42:44,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:44,234 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 225 transitions. [2024-12-02 08:42:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 08:42:44,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:44,235 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:44,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:42:44,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 08:42:44,436 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:44,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:44,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1518996242, now seen corresponding path program 1 times [2024-12-02 08:42:44,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:44,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484931690] [2024-12-02 08:42:44,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:44,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:44,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484931690] [2024-12-02 08:42:44,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484931690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:44,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:44,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:42:44,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555890902] [2024-12-02 08:42:44,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:44,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:42:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:44,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:42:44,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:42:44,521 INFO L87 Difference]: Start difference. First operand 164 states and 225 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:44,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:44,546 INFO L93 Difference]: Finished difference Result 282 states and 389 transitions. [2024-12-02 08:42:44,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:42:44,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-12-02 08:42:44,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:44,549 INFO L225 Difference]: With dead ends: 282 [2024-12-02 08:42:44,549 INFO L226 Difference]: Without dead ends: 166 [2024-12-02 08:42:44,549 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 08:42:44,550 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:44,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-12-02 08:42:44,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-12-02 08:42:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 133 states have (on average 1.255639097744361) internal successors, (167), 133 states have internal predecessors, (167), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 227 transitions. [2024-12-02 08:42:44,569 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 227 transitions. Word has length 124 [2024-12-02 08:42:44,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:44,569 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 227 transitions. [2024-12-02 08:42:44,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 227 transitions. [2024-12-02 08:42:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 08:42:44,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:44,571 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:44,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:42:44,571 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 507878992, now seen corresponding path program 1 times [2024-12-02 08:42:44,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:44,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759007725] [2024-12-02 08:42:44,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:46,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:46,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759007725] [2024-12-02 08:42:46,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759007725] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:46,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:46,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:42:46,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255768498] [2024-12-02 08:42:46,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:46,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:42:46,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:46,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:42:46,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:42:46,400 INFO L87 Difference]: Start difference. First operand 166 states and 227 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 08:42:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:47,469 INFO L93 Difference]: Finished difference Result 332 states and 451 transitions. [2024-12-02 08:42:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:42:47,469 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 124 [2024-12-02 08:42:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:47,471 INFO L225 Difference]: With dead ends: 332 [2024-12-02 08:42:47,471 INFO L226 Difference]: Without dead ends: 214 [2024-12-02 08:42:47,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:42:47,472 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 277 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:47,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 540 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:42:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-12-02 08:42:47,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 171. [2024-12-02 08:42:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 138 states have internal predecessors, (174), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 234 transitions. [2024-12-02 08:42:47,489 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 234 transitions. Word has length 124 [2024-12-02 08:42:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:47,489 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 234 transitions. [2024-12-02 08:42:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 08:42:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 234 transitions. [2024-12-02 08:42:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:42:47,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:47,491 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:47,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:42:47,491 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:47,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:47,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1018530735, now seen corresponding path program 1 times [2024-12-02 08:42:47,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:47,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181408748] [2024-12-02 08:42:47,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:47,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:47,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181408748] [2024-12-02 08:42:47,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181408748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:47,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:47,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:42:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459191196] [2024-12-02 08:42:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:47,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:42:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:47,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:42:47,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:42:47,808 INFO L87 Difference]: Start difference. First operand 171 states and 234 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:48,222 INFO L93 Difference]: Finished difference Result 334 states and 456 transitions. [2024-12-02 08:42:48,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:48,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2024-12-02 08:42:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:48,225 INFO L225 Difference]: With dead ends: 334 [2024-12-02 08:42:48,225 INFO L226 Difference]: Without dead ends: 211 [2024-12-02 08:42:48,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:48,226 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 213 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:48,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 307 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-12-02 08:42:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 182. [2024-12-02 08:42:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 149 states have (on average 1.2684563758389262) internal successors, (189), 149 states have internal predecessors, (189), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 249 transitions. [2024-12-02 08:42:48,249 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 249 transitions. Word has length 126 [2024-12-02 08:42:48,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:48,249 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 249 transitions. [2024-12-02 08:42:48,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 249 transitions. [2024-12-02 08:42:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:42:48,251 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:48,251 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:48,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:42:48,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:48,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash -470688275, now seen corresponding path program 1 times [2024-12-02 08:42:48,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:48,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071017094] [2024-12-02 08:42:48,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:48,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:50,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:50,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071017094] [2024-12-02 08:42:50,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071017094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:50,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:50,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:42:50,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186624304] [2024-12-02 08:42:50,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:50,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:42:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:50,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:42:50,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:42:50,541 INFO L87 Difference]: Start difference. First operand 182 states and 249 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:51,279 INFO L93 Difference]: Finished difference Result 360 states and 489 transitions. [2024-12-02 08:42:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:42:51,279 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2024-12-02 08:42:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:51,281 INFO L225 Difference]: With dead ends: 360 [2024-12-02 08:42:51,281 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 08:42:51,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:42:51,282 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 421 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:51,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 411 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:42:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 08:42:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 189. [2024-12-02 08:42:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 156 states have (on average 1.2628205128205128) internal successors, (197), 156 states have internal predecessors, (197), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 257 transitions. [2024-12-02 08:42:51,306 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 257 transitions. Word has length 126 [2024-12-02 08:42:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:51,307 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 257 transitions. [2024-12-02 08:42:51,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 257 transitions. [2024-12-02 08:42:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:42:51,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:51,308 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:51,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:42:51,309 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:51,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:51,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1670491939, now seen corresponding path program 1 times [2024-12-02 08:42:51,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:51,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488099128] [2024-12-02 08:42:51,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:52,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:52,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488099128] [2024-12-02 08:42:52,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488099128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:42:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368302617] [2024-12-02 08:42:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:52,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:42:52,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:52,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:42:52,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:42:52,263 INFO L87 Difference]: Start difference. First operand 189 states and 257 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:52,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:52,599 INFO L93 Difference]: Finished difference Result 397 states and 538 transitions. [2024-12-02 08:42:52,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:42:52,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2024-12-02 08:42:52,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:52,601 INFO L225 Difference]: With dead ends: 397 [2024-12-02 08:42:52,601 INFO L226 Difference]: Without dead ends: 256 [2024-12-02 08:42:52,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:42:52,602 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 230 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:52,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 576 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:52,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-12-02 08:42:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 231. [2024-12-02 08:42:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 198 states have (on average 1.2727272727272727) internal successors, (252), 198 states have internal predecessors, (252), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 312 transitions. [2024-12-02 08:42:52,630 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 312 transitions. Word has length 128 [2024-12-02 08:42:52,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:52,630 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 312 transitions. [2024-12-02 08:42:52,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:52,631 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 312 transitions. [2024-12-02 08:42:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 08:42:52,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:52,632 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:52,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:42:52,632 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:52,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -905662791, now seen corresponding path program 1 times [2024-12-02 08:42:52,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:52,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131322664] [2024-12-02 08:42:52,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:52,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131322664] [2024-12-02 08:42:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131322664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:53,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:53,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:42:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374368921] [2024-12-02 08:42:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:53,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:42:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:53,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:42:53,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:42:53,024 INFO L87 Difference]: Start difference. First operand 231 states and 312 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:53,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:53,426 INFO L93 Difference]: Finished difference Result 477 states and 643 transitions. [2024-12-02 08:42:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:53,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-12-02 08:42:53,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:53,429 INFO L225 Difference]: With dead ends: 477 [2024-12-02 08:42:53,429 INFO L226 Difference]: Without dead ends: 294 [2024-12-02 08:42:53,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:53,430 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 147 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:53,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 434 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:53,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-02 08:42:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 269. [2024-12-02 08:42:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 236 states have (on average 1.2796610169491525) internal successors, (302), 236 states have internal predecessors, (302), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 362 transitions. [2024-12-02 08:42:53,480 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 362 transitions. Word has length 129 [2024-12-02 08:42:53,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:53,480 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 362 transitions. [2024-12-02 08:42:53,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 362 transitions. [2024-12-02 08:42:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 08:42:53,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:53,482 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:53,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:42:53,482 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:53,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash -967702405, now seen corresponding path program 1 times [2024-12-02 08:42:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746599872] [2024-12-02 08:42:53,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:54,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746599872] [2024-12-02 08:42:54,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746599872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:54,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:54,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:42:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599047616] [2024-12-02 08:42:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:54,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:42:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:54,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:42:54,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:42:54,090 INFO L87 Difference]: Start difference. First operand 269 states and 362 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:54,550 INFO L93 Difference]: Finished difference Result 523 states and 702 transitions. [2024-12-02 08:42:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:54,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-12-02 08:42:54,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:54,552 INFO L225 Difference]: With dead ends: 523 [2024-12-02 08:42:54,552 INFO L226 Difference]: Without dead ends: 302 [2024-12-02 08:42:54,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:54,553 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 220 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:54,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 427 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:42:54,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-12-02 08:42:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 239. [2024-12-02 08:42:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 206 states have (on average 1.266990291262136) internal successors, (261), 206 states have internal predecessors, (261), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 321 transitions. [2024-12-02 08:42:54,585 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 321 transitions. Word has length 129 [2024-12-02 08:42:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:54,586 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 321 transitions. [2024-12-02 08:42:54,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 321 transitions. [2024-12-02 08:42:54,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:42:54,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:54,587 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:54,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:42:54,587 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:54,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:54,588 INFO L85 PathProgramCache]: Analyzing trace with hash 829750658, now seen corresponding path program 1 times [2024-12-02 08:42:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:54,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736262448] [2024-12-02 08:42:54,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:54,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:55,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736262448] [2024-12-02 08:42:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736262448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:55,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:42:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361672518] [2024-12-02 08:42:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:55,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:42:55,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:55,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:42:55,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:42:55,817 INFO L87 Difference]: Start difference. First operand 239 states and 321 transitions. Second operand has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:56,456 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2024-12-02 08:42:56,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:42:56,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2024-12-02 08:42:56,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:56,457 INFO L225 Difference]: With dead ends: 306 [2024-12-02 08:42:56,457 INFO L226 Difference]: Without dead ends: 304 [2024-12-02 08:42:56,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:42:56,458 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 280 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:56,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 536 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:42:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-02 08:42:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 290. [2024-12-02 08:42:56,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 257 states have (on average 1.245136186770428) internal successors, (320), 257 states have internal predecessors, (320), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 380 transitions. [2024-12-02 08:42:56,483 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 380 transitions. Word has length 130 [2024-12-02 08:42:56,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:56,483 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 380 transitions. [2024-12-02 08:42:56,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 08:42:56,484 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 380 transitions. [2024-12-02 08:42:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:42:56,484 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:56,484 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:56,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:42:56,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:56,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:56,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1060491747, now seen corresponding path program 1 times [2024-12-02 08:42:56,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:56,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138063427] [2024-12-02 08:42:56,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:56,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:57,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:57,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138063427] [2024-12-02 08:42:57,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138063427] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:57,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:57,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:42:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013264550] [2024-12-02 08:42:57,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:57,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:42:57,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:57,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:42:57,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:42:57,081 INFO L87 Difference]: Start difference. First operand 290 states and 380 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:57,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:57,446 INFO L93 Difference]: Finished difference Result 560 states and 732 transitions. [2024-12-02 08:42:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-12-02 08:42:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:57,448 INFO L225 Difference]: With dead ends: 560 [2024-12-02 08:42:57,448 INFO L226 Difference]: Without dead ends: 318 [2024-12-02 08:42:57,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:57,449 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 345 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:57,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 276 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:42:57,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-12-02 08:42:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 290. [2024-12-02 08:42:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 257 states have (on average 1.2373540856031129) internal successors, (318), 257 states have internal predecessors, (318), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 378 transitions. [2024-12-02 08:42:57,488 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 378 transitions. Word has length 130 [2024-12-02 08:42:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:57,488 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 378 transitions. [2024-12-02 08:42:57,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 08:42:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 378 transitions. [2024-12-02 08:42:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 08:42:57,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:57,490 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:57,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:42:57,490 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:57,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1621895359, now seen corresponding path program 1 times [2024-12-02 08:42:57,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:57,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616046860] [2024-12-02 08:42:57,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:57,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:57,699 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:57,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:57,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616046860] [2024-12-02 08:42:57,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616046860] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:57,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:57,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:42:57,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687259601] [2024-12-02 08:42:57,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:57,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:42:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:57,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:42:57,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:42:57,701 INFO L87 Difference]: Start difference. First operand 290 states and 378 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:57,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:57,887 INFO L93 Difference]: Finished difference Result 582 states and 751 transitions. [2024-12-02 08:42:57,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:42:57,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-12-02 08:42:57,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:57,889 INFO L225 Difference]: With dead ends: 582 [2024-12-02 08:42:57,889 INFO L226 Difference]: Without dead ends: 340 [2024-12-02 08:42:57,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:42:57,889 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 27 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:57,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 390 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:42:57,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-12-02 08:42:57,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 298. [2024-12-02 08:42:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 265 states have (on average 1.2339622641509433) internal successors, (327), 265 states have internal predecessors, (327), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 387 transitions. [2024-12-02 08:42:57,912 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 387 transitions. Word has length 131 [2024-12-02 08:42:57,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:57,913 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 387 transitions. [2024-12-02 08:42:57,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 387 transitions. [2024-12-02 08:42:57,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 08:42:57,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:57,914 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:57,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:42:57,914 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:57,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1228868349, now seen corresponding path program 1 times [2024-12-02 08:42:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719659855] [2024-12-02 08:42:57,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:57,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 08:42:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:58,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719659855] [2024-12-02 08:42:58,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719659855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:58,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153847969] [2024-12-02 08:42:58,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:58,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:58,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:58,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:42:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:58,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:42:58,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:58,278 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:58,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153847969] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:58,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:58,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-12-02 08:42:58,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791264416] [2024-12-02 08:42:58,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:58,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:42:58,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:58,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:42:58,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:42:58,279 INFO L87 Difference]: Start difference. First operand 298 states and 387 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:58,333 INFO L93 Difference]: Finished difference Result 558 states and 721 transitions. [2024-12-02 08:42:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:42:58,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 131 [2024-12-02 08:42:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:58,334 INFO L225 Difference]: With dead ends: 558 [2024-12-02 08:42:58,334 INFO L226 Difference]: Without dead ends: 308 [2024-12-02 08:42:58,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:42:58,335 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:58,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 750 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:58,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-12-02 08:42:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2024-12-02 08:42:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 267 states have (on average 1.2322097378277153) internal successors, (329), 267 states have internal predecessors, (329), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:58,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 389 transitions. [2024-12-02 08:42:58,373 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 389 transitions. Word has length 131 [2024-12-02 08:42:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:58,374 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 389 transitions. [2024-12-02 08:42:58,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 389 transitions. [2024-12-02 08:42:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:42:58,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:58,375 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:58,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:42:58,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:58,575 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:58,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1323025862, now seen corresponding path program 1 times [2024-12-02 08:42:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:58,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969997545] [2024-12-02 08:42:58,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:58,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:42:58,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969997545] [2024-12-02 08:42:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969997545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:58,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:58,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:42:58,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516485623] [2024-12-02 08:42:58,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:58,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:42:58,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:58,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:42:58,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:42:58,719 INFO L87 Difference]: Start difference. First operand 300 states and 389 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:58,937 INFO L93 Difference]: Finished difference Result 494 states and 639 transitions. [2024-12-02 08:42:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:42:58,938 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 132 [2024-12-02 08:42:58,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:58,939 INFO L225 Difference]: With dead ends: 494 [2024-12-02 08:42:58,939 INFO L226 Difference]: Without dead ends: 242 [2024-12-02 08:42:58,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:42:58,940 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:58,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 411 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:42:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-12-02 08:42:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-12-02 08:42:58,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 209 states have (on average 1.200956937799043) internal successors, (251), 209 states have internal predecessors, (251), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 08:42:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 311 transitions. [2024-12-02 08:42:58,966 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 311 transitions. Word has length 132 [2024-12-02 08:42:58,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:58,966 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 311 transitions. [2024-12-02 08:42:58,966 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:42:58,966 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 311 transitions. [2024-12-02 08:42:58,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:42:58,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:58,967 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:58,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:42:58,967 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:58,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1667785729, now seen corresponding path program 1 times [2024-12-02 08:42:58,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:58,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992144336] [2024-12-02 08:42:58,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 08:42:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992144336] [2024-12-02 08:42:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992144336] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599864765] [2024-12-02 08:42:59,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:59,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:59,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:59,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:59,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:43:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:00,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 08:43:00,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:00,966 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 08:43:01,556 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 08:43:01,826 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 08:43:02,244 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 08:43:02,648 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 08:43:03,004 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 08:43:03,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,359 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 20 [2024-12-02 08:43:03,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,459 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 36 treesize of output 23 [2024-12-02 08:43:03,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,579 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 36 treesize of output 23 [2024-12-02 08:43:03,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2024-12-02 08:43:03,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 63 [2024-12-02 08:43:03,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:03,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2024-12-02 08:43:03,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 08:43:04,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:04,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 75 [2024-12-02 08:43:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 162 proven. 125 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-12-02 08:43:04,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:04,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599864765] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:04,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:43:04,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 21 [2024-12-02 08:43:04,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577207087] [2024-12-02 08:43:04,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:04,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:43:04,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:04,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:43:04,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:43:04,517 INFO L87 Difference]: Start difference. First operand 242 states and 311 transitions. Second operand has 21 states, 19 states have (on average 6.315789473684211) internal successors, (120), 21 states have internal predecessors, (120), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 08:43:06,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:06,341 INFO L93 Difference]: Finished difference Result 554 states and 690 transitions. [2024-12-02 08:43:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 08:43:06,342 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.315789473684211) internal successors, (120), 21 states have internal predecessors, (120), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) Word has length 132 [2024-12-02 08:43:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:06,343 INFO L225 Difference]: With dead ends: 554 [2024-12-02 08:43:06,343 INFO L226 Difference]: Without dead ends: 360 [2024-12-02 08:43:06,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=413, Invalid=1393, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 08:43:06,344 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 675 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:06,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 593 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:43:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-12-02 08:43:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 319. [2024-12-02 08:43:06,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 279 states have (on average 1.1720430107526882) internal successors, (327), 280 states have internal predecessors, (327), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 08:43:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 395 transitions. [2024-12-02 08:43:06,395 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 395 transitions. Word has length 132 [2024-12-02 08:43:06,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:06,395 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 395 transitions. [2024-12-02 08:43:06,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.315789473684211) internal successors, (120), 21 states have internal predecessors, (120), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-12-02 08:43:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 395 transitions. [2024-12-02 08:43:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 08:43:06,397 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:06,397 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:06,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:43:06,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:06,597 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:06,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:06,598 INFO L85 PathProgramCache]: Analyzing trace with hash -953934379, now seen corresponding path program 1 times [2024-12-02 08:43:06,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:06,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909620926] [2024-12-02 08:43:06,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:06,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:43:06,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:06,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909620926] [2024-12-02 08:43:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909620926] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:06,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:43:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536685135] [2024-12-02 08:43:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:06,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:06,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:06,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:06,783 INFO L87 Difference]: Start difference. First operand 319 states and 395 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:43:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:06,954 INFO L93 Difference]: Finished difference Result 612 states and 748 transitions. [2024-12-02 08:43:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:06,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 133 [2024-12-02 08:43:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:06,957 INFO L225 Difference]: With dead ends: 612 [2024-12-02 08:43:06,957 INFO L226 Difference]: Without dead ends: 345 [2024-12-02 08:43:06,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:06,959 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 28 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:06,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 317 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-12-02 08:43:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 332. [2024-12-02 08:43:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 292 states have (on average 1.1506849315068493) internal successors, (336), 293 states have internal predecessors, (336), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 08:43:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 404 transitions. [2024-12-02 08:43:07,017 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 404 transitions. Word has length 133 [2024-12-02 08:43:07,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:07,018 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 404 transitions. [2024-12-02 08:43:07,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:43:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 404 transitions. [2024-12-02 08:43:07,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:43:07,025 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:07,026 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:07,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:43:07,026 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:07,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1176860213, now seen corresponding path program 1 times [2024-12-02 08:43:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354190792] [2024-12-02 08:43:07,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:07,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:43:08,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:08,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354190792] [2024-12-02 08:43:08,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354190792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:08,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:08,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:43:08,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193247274] [2024-12-02 08:43:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:08,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:43:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:08,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:43:08,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:43:08,504 INFO L87 Difference]: Start difference. First operand 332 states and 404 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 08:43:09,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:09,367 INFO L93 Difference]: Finished difference Result 584 states and 709 transitions. [2024-12-02 08:43:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:43:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2024-12-02 08:43:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:09,369 INFO L225 Difference]: With dead ends: 584 [2024-12-02 08:43:09,369 INFO L226 Difference]: Without dead ends: 297 [2024-12-02 08:43:09,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:43:09,370 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 235 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:09,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 391 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:43:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-12-02 08:43:09,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-12-02 08:43:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 257 states have (on average 1.1439688715953307) internal successors, (294), 258 states have internal predecessors, (294), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 08:43:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 362 transitions. [2024-12-02 08:43:09,428 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 362 transitions. Word has length 134 [2024-12-02 08:43:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:09,429 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 362 transitions. [2024-12-02 08:43:09,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 08:43:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 362 transitions. [2024-12-02 08:43:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-12-02 08:43:09,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:09,431 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:09,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:43:09,431 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:09,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash -544148743, now seen corresponding path program 1 times [2024-12-02 08:43:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:09,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653289837] [2024-12-02 08:43:09,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 19 proven. 37 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-12-02 08:43:09,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653289837] [2024-12-02 08:43:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653289837] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733403401] [2024-12-02 08:43:09,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:09,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:09,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:09,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:09,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:43:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:10,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:43:10,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1776 trivial. 0 not checked. [2024-12-02 08:43:10,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:10,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733403401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:10,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:10,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-12-02 08:43:10,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796140535] [2024-12-02 08:43:10,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:10,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:43:10,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:10,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:43:10,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:10,023 INFO L87 Difference]: Start difference. First operand 297 states and 362 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:43:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:10,078 INFO L93 Difference]: Finished difference Result 400 states and 483 transitions. [2024-12-02 08:43:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:43:10,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 247 [2024-12-02 08:43:10,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:10,079 INFO L225 Difference]: With dead ends: 400 [2024-12-02 08:43:10,079 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:43:10,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:10,080 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 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 08:43:10,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:43:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:43:10,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:43:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:43:10,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2024-12-02 08:43:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:10,081 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:43:10,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 08:43:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:43:10,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:43:10,083 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:43:10,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:43:10,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:10,286 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] [2024-12-02 08:43:10,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:43:17,680 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:43:17,691 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!base [2024-12-02 08:43:17,692 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!base [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,693 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!base [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,694 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!base [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!offset [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!base [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!base [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~WrapperStruct00_var_1_1_Pointer~0!base,GLOBAL]]] [2024-12-02 08:43:17,695 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!base [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!base [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,696 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!base [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset [2024-12-02 08:43:17,697 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!base [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!base [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!base [2024-12-02 08:43:17,698 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,699 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!base [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!base [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!base [2024-12-02 08:43:17,700 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!offset [2024-12-02 08:43:17,701 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!offset [2024-12-02 08:43:17,701 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!base [2024-12-02 08:43:17,701 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset [2024-12-02 08:43:17,701 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset [2024-12-02 08:43:17,701 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base [2024-12-02 08:43:17,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:43:17 BoogieIcfgContainer [2024-12-02 08:43:17,701 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:43:17,702 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:43:17,702 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:43:17,702 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:43:17,703 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:42:36" (3/4) ... [2024-12-02 08:43:17,705 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:43:17,710 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 08:43:17,716 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 08:43:17,717 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 08:43:17,717 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 08:43:17,717 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:43:17,803 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:43:17,803 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:43:17,804 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:43:17,804 INFO L158 Benchmark]: Toolchain (without parser) took 41932.03ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 117.0MB in the beginning and 404.2MB in the end (delta: -287.2MB). Peak memory consumption was 203.3MB. Max. memory is 16.1GB. [2024-12-02 08:43:17,804 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:17,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.08ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 102.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:43:17,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.98ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 98.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:17,805 INFO L158 Benchmark]: Boogie Preprocessor took 42.60ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:17,805 INFO L158 Benchmark]: RCFGBuilder took 602.07ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 66.8MB in the end (delta: 29.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 08:43:17,805 INFO L158 Benchmark]: TraceAbstraction took 40854.65ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 66.0MB in the beginning and 412.5MB in the end (delta: -346.4MB). Peak memory consumption was 335.6MB. Max. memory is 16.1GB. [2024-12-02 08:43:17,806 INFO L158 Benchmark]: Witness Printer took 101.79ms. Allocated memory is still 637.5MB. Free memory was 412.5MB in the beginning and 404.2MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:43:17,807 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 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.08ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 102.0MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.98ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 98.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.60ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 602.07ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 66.8MB in the end (delta: 29.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 40854.65ms. Allocated memory was 142.6MB in the beginning and 637.5MB in the end (delta: 494.9MB). Free memory was 66.0MB in the beginning and 412.5MB in the end (delta: -346.4MB). Peak memory consumption was 335.6MB. Max. memory is 16.1GB. * Witness Printer took 101.79ms. Allocated memory is still 637.5MB. Free memory was 412.5MB in the beginning and 404.2MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~WrapperStruct00_var_1_1_Pointer~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_10_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_4_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_12_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[4]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_6_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#WrapperStruct00~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_1_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_13_Pointer~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_8_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_11_Pointer~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~WrapperStruct00_var_1_5_Pointer~0!base * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.4s, OverallIterations: 24, TraceHistogramMax: 30, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3582 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3573 mSDsluCounter, 9625 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6931 mSDsCounter, 324 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6127 IncrementalHoareTripleChecker+Invalid, 6451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 324 mSolverCounterUnsat, 2694 mSDtfsCounter, 6127 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1078 GetRequests, 855 SyntacticMatches, 4 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=22, InterpolantAutomatonStates: 157, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 24 MinimizatonAttempts, 454 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 3904 NumberOfCodeBlocks, 3904 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 3875 ConstructedInterpolants, 5 QuantifiedInterpolants, 27894 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2815 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 14631/14932 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 08:43:17,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e93a75a2-5588-4b4f-be5b-b6e65a848dfa/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 Writing output log to file Ultimate.log Result: TRUE