./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC --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 11d74a543cee1f351191abd3a7069f7bb4ba76af68915de79e2fa012ba9bfe73 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:22:35,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:22:35,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:22:35,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:22:35,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:22:35,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:22:35,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:22:35,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:22:35,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:22:35,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:22:35,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:22:35,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:22:35,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:22:35,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:22:35,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:22:35,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:22:35,132 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:35,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:22:35,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:35,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:22:35,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:22:35,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:22:35,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:22:35,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:22:35,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:22:35,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:22:35,134 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_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC 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 -> 11d74a543cee1f351191abd3a7069f7bb4ba76af68915de79e2fa012ba9bfe73 [2024-11-24 01:22:35,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:22:35,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:22:35,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:22:35,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:22:35,491 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:22:35,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i [2024-11-24 01:22:38,642 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/data/e7c543ab1/8c2ec9b0ffc744c3a57fc39419e8b023/FLAGc2d47c093 [2024-11-24 01:22:38,956 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:22:38,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i [2024-11-24 01:22:38,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/data/e7c543ab1/8c2ec9b0ffc744c3a57fc39419e8b023/FLAGc2d47c093 [2024-11-24 01:22:39,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/data/e7c543ab1/8c2ec9b0ffc744c3a57fc39419e8b023 [2024-11-24 01:22:39,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:22:39,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:22:39,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:39,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:22:39,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:22:39,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f97d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39, skipping insertion in model container [2024-11-24 01:22:39,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:22:39,432 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_2c5bae98-f378-4002-bd2f-078e621d25da/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i[916,929] [2024-11-24 01:22:39,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:39,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:22:39,523 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_2c5bae98-f378-4002-bd2f-078e621d25da/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-30.i[916,929] [2024-11-24 01:22:39,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:22:39,602 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:22:39,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39 WrapperNode [2024-11-24 01:22:39,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:22:39,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:39,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:22:39,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:22:39,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,673 INFO L138 Inliner]: procedures = 30, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 517 [2024-11-24 01:22:39,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:22:39,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:22:39,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:22:39,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:22:39,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,703 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 01:22:39,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,743 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:22:39,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:22:39,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:22:39,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:22:39,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (1/1) ... [2024-11-24 01:22:39,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:22:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:39,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:22:39,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:22:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:22:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 01:22:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 01:22:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 01:22:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:22:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 01:22:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:22:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:22:39,843 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:22:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:22:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:22:39,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:22:40,000 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:22:40,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:22:41,093 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-24 01:22:41,097 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:22:41,115 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:22:41,116 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:22:41,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:41 BoogieIcfgContainer [2024-11-24 01:22:41,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:22:41,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:22:41,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:22:41,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:22:41,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:22:39" (1/3) ... [2024-11-24 01:22:41,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e0570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:41, skipping insertion in model container [2024-11-24 01:22:41,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:22:39" (2/3) ... [2024-11-24 01:22:41,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e0570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:22:41, skipping insertion in model container [2024-11-24 01:22:41,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:22:41" (3/3) ... [2024-11-24 01:22:41,133 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-30.i [2024-11-24 01:22:41,154 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:22:41,157 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-30.i that has 2 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:22:41,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:22:41,245 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;@342050a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:22:41,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:22:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 01:22:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:22:41,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:41,271 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:41,272 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:41,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:41,279 INFO L85 PathProgramCache]: Analyzing trace with hash 548327258, now seen corresponding path program 1 times [2024-11-24 01:22:41,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:41,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497147330] [2024-11-24 01:22:41,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:41,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 01:22:41,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:41,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497147330] [2024-11-24 01:22:41,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497147330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:41,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100532374] [2024-11-24 01:22:41,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:41,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:41,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:41,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:41,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:22:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:42,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:22:42,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-24 01:22:42,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:42,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100532374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:42,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:22:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509281382] [2024-11-24 01:22:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:42,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:22:42,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:42,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:22:42,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:22:42,268 INFO L87 Difference]: Start difference. First operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:42,314 INFO L93 Difference]: Finished difference Result 233 states and 361 transitions. [2024-11-24 01:22:42,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:22:42,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-24 01:22:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:42,330 INFO L225 Difference]: With dead ends: 233 [2024-11-24 01:22:42,330 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 01:22:42,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:22:42,342 INFO L435 NwaCegarLoop]: 168 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, 168 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 [2024-11-24 01:22:42,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:42,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 01:22:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-24 01:22:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 01:22:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2024-11-24 01:22:42,414 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 168 transitions. Word has length 138 [2024-11-24 01:22:42,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:42,416 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 168 transitions. [2024-11-24 01:22:42,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 168 transitions. [2024-11-24 01:22:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:22:42,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:42,423 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:42,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:22:42,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:22:42,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:42,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1959915148, now seen corresponding path program 1 times [2024-11-24 01:22:42,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:42,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688144772] [2024-11-24 01:22:42,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:43,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:43,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688144772] [2024-11-24 01:22:43,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688144772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:43,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:43,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:43,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678506204] [2024-11-24 01:22:43,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:43,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:22:43,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:43,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:22:43,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:22:43,233 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:43,329 INFO L93 Difference]: Finished difference Result 231 states and 336 transitions. [2024-11-24 01:22:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-24 01:22:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:43,332 INFO L225 Difference]: With dead ends: 231 [2024-11-24 01:22:43,332 INFO L226 Difference]: Without dead ends: 118 [2024-11-24 01:22:43,336 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 [2024-11-24 01:22:43,337 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 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 [2024-11-24 01:22:43,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-24 01:22:43,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-24 01:22:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 01:22:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2024-11-24 01:22:43,365 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 138 [2024-11-24 01:22:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:43,370 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2024-11-24 01:22:43,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2024-11-24 01:22:43,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:22:43,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:43,375 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:43,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:22:43,376 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:43,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1944396430, now seen corresponding path program 1 times [2024-11-24 01:22:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:43,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490660211] [2024-11-24 01:22:43,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:43,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:43,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:43,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490660211] [2024-11-24 01:22:43,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490660211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:43,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:43,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:22:43,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123212836] [2024-11-24 01:22:43,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:43,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:22:43,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:43,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:22:43,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:22:43,813 INFO L87 Difference]: Start difference. First operand 118 states and 170 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:22:43,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:43,879 INFO L93 Difference]: Finished difference Result 236 states and 341 transitions. [2024-11-24 01:22:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-24 01:22:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:43,884 INFO L225 Difference]: With dead ends: 236 [2024-11-24 01:22:43,886 INFO L226 Difference]: Without dead ends: 121 [2024-11-24 01:22:43,887 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 [2024-11-24 01:22:43,888 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:43,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-24 01:22:43,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-11-24 01:22:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-24 01:22:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2024-11-24 01:22:43,915 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 138 [2024-11-24 01:22:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:43,918 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2024-11-24 01:22:43,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:22:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2024-11-24 01:22:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:22:43,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:43,927 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:43,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:22:43,928 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:43,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:43,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1942549388, now seen corresponding path program 1 times [2024-11-24 01:22:43,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:43,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824699519] [2024-11-24 01:22:43,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:46,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824699519] [2024-11-24 01:22:46,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824699519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:46,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:46,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:22:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281296038] [2024-11-24 01:22:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:46,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:22:46,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:46,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:22:46,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:22:46,267 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:48,766 INFO L93 Difference]: Finished difference Result 510 states and 727 transitions. [2024-11-24 01:22:48,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:22:48,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-24 01:22:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:48,770 INFO L225 Difference]: With dead ends: 510 [2024-11-24 01:22:48,770 INFO L226 Difference]: Without dead ends: 393 [2024-11-24 01:22:48,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:22:48,772 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 390 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:48,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1009 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 01:22:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-24 01:22:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 379. [2024-11-24 01:22:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 316 states have (on average 1.3481012658227849) internal successors, (426), 318 states have internal predecessors, (426), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:22:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 542 transitions. [2024-11-24 01:22:48,823 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 542 transitions. Word has length 138 [2024-11-24 01:22:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:48,823 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 542 transitions. [2024-11-24 01:22:48,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 542 transitions. [2024-11-24 01:22:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:22:48,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:48,827 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:48,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:22:48,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:48,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:48,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1059652631, now seen corresponding path program 1 times [2024-11-24 01:22:48,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925473012] [2024-11-24 01:22:48,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:50,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:50,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925473012] [2024-11-24 01:22:50,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925473012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:50,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:50,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:22:50,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943003911] [2024-11-24 01:22:50,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:50,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:22:50,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:50,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:22:50,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:22:50,878 INFO L87 Difference]: Start difference. First operand 379 states and 542 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:52,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:52,169 INFO L93 Difference]: Finished difference Result 759 states and 1084 transitions. [2024-11-24 01:22:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:22:52,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-24 01:22:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:52,177 INFO L225 Difference]: With dead ends: 759 [2024-11-24 01:22:52,177 INFO L226 Difference]: Without dead ends: 383 [2024-11-24 01:22:52,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:22:52,180 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 69 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:52,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 641 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:22:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-24 01:22:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2024-11-24 01:22:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 316 states have (on average 1.3417721518987342) internal successors, (424), 318 states have internal predecessors, (424), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:22:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 540 transitions. [2024-11-24 01:22:52,259 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 540 transitions. Word has length 139 [2024-11-24 01:22:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:52,260 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 540 transitions. [2024-11-24 01:22:52,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:52,262 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 540 transitions. [2024-11-24 01:22:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:22:52,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:52,265 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:52,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:22:52,268 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:52,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:52,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1059878008, now seen corresponding path program 1 times [2024-11-24 01:22:52,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:52,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824255442] [2024-11-24 01:22:52,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:52,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:53,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:53,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824255442] [2024-11-24 01:22:53,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824255442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:53,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:53,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:22:53,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54172672] [2024-11-24 01:22:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:53,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:22:53,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:53,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:22:53,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:22:53,701 INFO L87 Difference]: Start difference. First operand 379 states and 540 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:54,649 INFO L93 Difference]: Finished difference Result 763 states and 1086 transitions. [2024-11-24 01:22:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:22:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-24 01:22:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:54,655 INFO L225 Difference]: With dead ends: 763 [2024-11-24 01:22:54,655 INFO L226 Difference]: Without dead ends: 387 [2024-11-24 01:22:54,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:22:54,658 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 95 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:54,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 769 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:22:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-24 01:22:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-11-24 01:22:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 320 states have (on average 1.3375) internal successors, (428), 322 states have internal predecessors, (428), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:22:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 544 transitions. [2024-11-24 01:22:54,713 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 544 transitions. Word has length 139 [2024-11-24 01:22:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:54,717 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 544 transitions. [2024-11-24 01:22:54,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:22:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 544 transitions. [2024-11-24 01:22:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 01:22:54,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:54,720 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:54,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:22:54,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:54,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:54,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1559149331, now seen corresponding path program 1 times [2024-11-24 01:22:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:54,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86860490] [2024-11-24 01:22:54,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-24 01:22:55,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:55,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86860490] [2024-11-24 01:22:55,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86860490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:55,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955236795] [2024-11-24 01:22:55,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:55,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:55,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:55,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:55,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:22:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:55,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:22:55,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:55,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:55,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955236795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:55,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:55,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-24 01:22:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910668344] [2024-11-24 01:22:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:55,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:55,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:55,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:55,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:22:55,396 INFO L87 Difference]: Start difference. First operand 383 states and 544 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:22:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:55,468 INFO L93 Difference]: Finished difference Result 775 states and 1101 transitions. [2024-11-24 01:22:55,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:22:55,469 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-24 01:22:55,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:55,472 INFO L225 Difference]: With dead ends: 775 [2024-11-24 01:22:55,472 INFO L226 Difference]: Without dead ends: 395 [2024-11-24 01:22:55,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:22:55,478 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:55,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 650 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:22:55,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-24 01:22:55,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2024-11-24 01:22:55,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 328 states have (on average 1.329268292682927) internal successors, (436), 330 states have internal predecessors, (436), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:22:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 552 transitions. [2024-11-24 01:22:55,520 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 552 transitions. Word has length 141 [2024-11-24 01:22:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:55,521 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 552 transitions. [2024-11-24 01:22:55,521 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 01:22:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 552 transitions. [2024-11-24 01:22:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 01:22:55,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:55,523 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:55,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:55,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:55,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:55,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -344508669, now seen corresponding path program 1 times [2024-11-24 01:22:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551970195] [2024-11-24 01:22:55,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:55,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:22:58,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:58,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551970195] [2024-11-24 01:22:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551970195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:58,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:58,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:22:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001147085] [2024-11-24 01:22:58,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:58,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:22:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:58,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:22:58,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:22:58,168 INFO L87 Difference]: Start difference. First operand 391 states and 552 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:00,675 INFO L93 Difference]: Finished difference Result 977 states and 1368 transitions. [2024-11-24 01:23:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:00,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-24 01:23:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:00,680 INFO L225 Difference]: With dead ends: 977 [2024-11-24 01:23:00,680 INFO L226 Difference]: Without dead ends: 589 [2024-11-24 01:23:00,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:23:00,682 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 338 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:00,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 836 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 01:23:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-24 01:23:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 446. [2024-11-24 01:23:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 383 states have (on average 1.3315926892950392) internal successors, (510), 385 states have internal predecessors, (510), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:23:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 626 transitions. [2024-11-24 01:23:00,733 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 626 transitions. Word has length 141 [2024-11-24 01:23:00,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:00,733 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 626 transitions. [2024-11-24 01:23:00,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 626 transitions. [2024-11-24 01:23:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 01:23:00,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:00,736 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:00,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:23:00,736 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:00,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:00,737 INFO L85 PathProgramCache]: Analyzing trace with hash 428417814, now seen corresponding path program 1 times [2024-11-24 01:23:00,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:00,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089204483] [2024-11-24 01:23:00,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:00,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:02,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:02,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089204483] [2024-11-24 01:23:02,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089204483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:02,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:02,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:23:02,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524647236] [2024-11-24 01:23:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:02,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:23:02,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:02,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:23:02,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:02,711 INFO L87 Difference]: Start difference. First operand 446 states and 626 transitions. Second operand has 11 states, 9 states have (on average 6.555555555555555) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:04,417 INFO L93 Difference]: Finished difference Result 1180 states and 1634 transitions. [2024-11-24 01:23:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:23:04,418 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.555555555555555) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-24 01:23:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:04,422 INFO L225 Difference]: With dead ends: 1180 [2024-11-24 01:23:04,422 INFO L226 Difference]: Without dead ends: 737 [2024-11-24 01:23:04,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:23:04,424 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 234 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:04,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 976 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:23:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-11-24 01:23:04,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 540. [2024-11-24 01:23:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 463 states have (on average 1.3218142548596112) internal successors, (612), 467 states have internal predecessors, (612), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 01:23:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 748 transitions. [2024-11-24 01:23:04,488 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 748 transitions. Word has length 141 [2024-11-24 01:23:04,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:04,489 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 748 transitions. [2024-11-24 01:23:04,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.555555555555555) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 748 transitions. [2024-11-24 01:23:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 01:23:04,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:04,491 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:04,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:23:04,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:04,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash -592650540, now seen corresponding path program 1 times [2024-11-24 01:23:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:04,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994884134] [2024-11-24 01:23:04,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:04,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:06,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:06,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994884134] [2024-11-24 01:23:06,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994884134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:06,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:06,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:06,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962177883] [2024-11-24 01:23:06,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:06,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:06,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:06,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:06,099 INFO L87 Difference]: Start difference. First operand 540 states and 748 transitions. Second operand has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:07,430 INFO L93 Difference]: Finished difference Result 1096 states and 1515 transitions. [2024-11-24 01:23:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:07,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-24 01:23:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:07,436 INFO L225 Difference]: With dead ends: 1096 [2024-11-24 01:23:07,436 INFO L226 Difference]: Without dead ends: 559 [2024-11-24 01:23:07,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:07,438 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 71 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:07,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 838 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:23:07,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-24 01:23:07,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 540. [2024-11-24 01:23:07,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 463 states have (on average 1.3131749460043196) internal successors, (608), 467 states have internal predecessors, (608), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 64 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 01:23:07,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 744 transitions. [2024-11-24 01:23:07,540 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 744 transitions. Word has length 141 [2024-11-24 01:23:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:07,542 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 744 transitions. [2024-11-24 01:23:07,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 744 transitions. [2024-11-24 01:23:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 01:23:07,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:07,548 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:07,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:23:07,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:07,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:07,549 INFO L85 PathProgramCache]: Analyzing trace with hash 798894449, now seen corresponding path program 1 times [2024-11-24 01:23:07,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:07,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955320718] [2024-11-24 01:23:07,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:07,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:09,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:09,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955320718] [2024-11-24 01:23:09,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955320718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:09,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:09,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:09,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317740893] [2024-11-24 01:23:09,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:09,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:09,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:09,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:09,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:09,516 INFO L87 Difference]: Start difference. First operand 540 states and 744 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:10,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:10,680 INFO L93 Difference]: Finished difference Result 1094 states and 1499 transitions. [2024-11-24 01:23:10,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:23:10,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-24 01:23:10,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:10,685 INFO L225 Difference]: With dead ends: 1094 [2024-11-24 01:23:10,685 INFO L226 Difference]: Without dead ends: 557 [2024-11-24 01:23:10,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:10,688 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 65 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:10,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 602 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:23:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-24 01:23:10,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 472. [2024-11-24 01:23:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 405 states have (on average 1.308641975308642) internal successors, (530), 407 states have internal predecessors, (530), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-24 01:23:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 646 transitions. [2024-11-24 01:23:10,754 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 646 transitions. Word has length 143 [2024-11-24 01:23:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:10,755 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 646 transitions. [2024-11-24 01:23:10,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:10,755 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 646 transitions. [2024-11-24 01:23:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 01:23:10,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:10,757 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:10,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:23:10,758 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:10,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1442242302, now seen corresponding path program 1 times [2024-11-24 01:23:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:10,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846211207] [2024-11-24 01:23:10,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:12,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:12,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846211207] [2024-11-24 01:23:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846211207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:12,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54117086] [2024-11-24 01:23:12,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:12,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:23:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:12,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:23:12,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:23:12,102 INFO L87 Difference]: Start difference. First operand 472 states and 646 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:13,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:13,215 INFO L93 Difference]: Finished difference Result 1103 states and 1503 transitions. [2024-11-24 01:23:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:23:13,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-24 01:23:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:13,223 INFO L225 Difference]: With dead ends: 1103 [2024-11-24 01:23:13,223 INFO L226 Difference]: Without dead ends: 634 [2024-11-24 01:23:13,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:23:13,227 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 84 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:13,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1213 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:23:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-24 01:23:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 630. [2024-11-24 01:23:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 539 states have (on average 1.2968460111317255) internal successors, (699), 543 states have internal predecessors, (699), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-24 01:23:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 855 transitions. [2024-11-24 01:23:13,313 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 855 transitions. Word has length 143 [2024-11-24 01:23:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:13,314 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 855 transitions. [2024-11-24 01:23:13,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 855 transitions. [2024-11-24 01:23:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 01:23:13,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:13,317 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:13,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:23:13,318 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:13,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1091036220, now seen corresponding path program 1 times [2024-11-24 01:23:13,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:13,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035785130] [2024-11-24 01:23:13,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:13,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035785130] [2024-11-24 01:23:15,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035785130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:15,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:15,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:23:15,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798950344] [2024-11-24 01:23:15,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:15,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:23:15,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:15,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:23:15,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:23:15,363 INFO L87 Difference]: Start difference. First operand 630 states and 855 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:17,451 INFO L93 Difference]: Finished difference Result 1472 states and 2007 transitions. [2024-11-24 01:23:17,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:23:17,453 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-24 01:23:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:17,459 INFO L225 Difference]: With dead ends: 1472 [2024-11-24 01:23:17,459 INFO L226 Difference]: Without dead ends: 845 [2024-11-24 01:23:17,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:23:17,462 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 217 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:17,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 839 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:23:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-24 01:23:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 843. [2024-11-24 01:23:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 719 states have (on average 1.3045897079276774) internal successors, (938), 724 states have internal predecessors, (938), 107 states have call successors, (107), 16 states have call predecessors, (107), 16 states have return successors, (107), 102 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 01:23:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1152 transitions. [2024-11-24 01:23:17,565 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1152 transitions. Word has length 144 [2024-11-24 01:23:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:17,566 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1152 transitions. [2024-11-24 01:23:17,567 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), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 01:23:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1152 transitions. [2024-11-24 01:23:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 01:23:17,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:17,570 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:17,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:23:17,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:17,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1209786370, now seen corresponding path program 1 times [2024-11-24 01:23:17,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:17,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28314659] [2024-11-24 01:23:17,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:18,811 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-24 01:23:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:18,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28314659] [2024-11-24 01:23:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28314659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:18,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205088120] [2024-11-24 01:23:18,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:18,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:18,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:18,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:18,815 INFO L87 Difference]: Start difference. First operand 843 states and 1152 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:19,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:19,531 INFO L93 Difference]: Finished difference Result 1573 states and 2146 transitions. [2024-11-24 01:23:19,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:19,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-24 01:23:19,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:19,537 INFO L225 Difference]: With dead ends: 1573 [2024-11-24 01:23:19,537 INFO L226 Difference]: Without dead ends: 733 [2024-11-24 01:23:19,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:23:19,540 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 130 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:19,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 488 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:23:19,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-24 01:23:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 728. [2024-11-24 01:23:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 604 states have (on average 1.2847682119205297) internal successors, (776), 609 states have internal predecessors, (776), 107 states have call successors, (107), 16 states have call predecessors, (107), 16 states have return successors, (107), 102 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-24 01:23:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 990 transitions. [2024-11-24 01:23:19,624 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 990 transitions. Word has length 144 [2024-11-24 01:23:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:19,625 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 990 transitions. [2024-11-24 01:23:19,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:23:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 990 transitions. [2024-11-24 01:23:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:23:19,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:19,629 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:19,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:23:19,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:19,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:19,630 INFO L85 PathProgramCache]: Analyzing trace with hash -741564834, now seen corresponding path program 1 times [2024-11-24 01:23:19,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:19,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835457546] [2024-11-24 01:23:19,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:19,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-24 01:23:21,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:21,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835457546] [2024-11-24 01:23:21,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835457546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:21,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198784848] [2024-11-24 01:23:21,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:21,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:21,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:23:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:21,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-24 01:23:22,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:22,104 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 70 treesize of output 69 [2024-11-24 01:23:23,045 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 137 treesize of output 116 [2024-11-24 01:23:24,364 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 137 treesize of output 116 [2024-11-24 01:23:25,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 116 [2024-11-24 01:23:30,586 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 153 treesize of output 128 [2024-11-24 01:23:33,126 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 159 treesize of output 132 [2024-11-24 01:23:35,263 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 165 treesize of output 136 [2024-11-24 01:23:36,585 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 171 treesize of output 140 [2024-11-24 01:23:37,634 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 171 treesize of output 140 [2024-11-24 01:23:38,739 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 171 treesize of output 140 [2024-11-24 01:23:40,001 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 188 treesize of output 155 [2024-11-24 01:23:43,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 155 [2024-11-24 01:23:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 444 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-24 01:23:43,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:44,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198784848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:44,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:23:44,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 25 [2024-11-24 01:23:44,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536292199] [2024-11-24 01:23:44,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:23:44,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 01:23:44,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:44,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 01:23:44,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:23:44,737 INFO L87 Difference]: Start difference. First operand 728 states and 990 transitions. Second operand has 25 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 9 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 8 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-24 01:24:26,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:26,400 INFO L93 Difference]: Finished difference Result 2239 states and 3004 transitions. [2024-11-24 01:24:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-24 01:24:26,402 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 9 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 8 states have call predecessors, (34), 9 states have call successors, (34) Word has length 145 [2024-11-24 01:24:26,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:26,411 INFO L225 Difference]: With dead ends: 2239 [2024-11-24 01:24:26,411 INFO L226 Difference]: Without dead ends: 1672 [2024-11-24 01:24:26,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=579, Invalid=3711, Unknown=0, NotChecked=0, Total=4290 [2024-11-24 01:24:26,415 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 580 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:26,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 1254 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time] [2024-11-24 01:24:26,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-24 01:24:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1306. [2024-11-24 01:24:26,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1086 states have (on average 1.2882136279926335) internal successors, (1399), 1093 states have internal predecessors, (1399), 185 states have call successors, (185), 34 states have call predecessors, (185), 34 states have return successors, (185), 178 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-24 01:24:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1769 transitions. [2024-11-24 01:24:26,578 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1769 transitions. Word has length 145 [2024-11-24 01:24:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:26,578 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 1769 transitions. [2024-11-24 01:24:26,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 5.434782608695652) internal successors, (125), 24 states have internal predecessors, (125), 9 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 8 states have call predecessors, (34), 9 states have call successors, (34) [2024-11-24 01:24:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1769 transitions. [2024-11-24 01:24:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:24:26,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:26,582 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:26,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:26,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c5bae98-f378-4002-bd2f-078e621d25da/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 01:24:26,786 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:26,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1559213284, now seen corresponding path program 1 times [2024-11-24 01:24:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:26,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011844155] [2024-11-24 01:24:26,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat