./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.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_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/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_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/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_eccc44ad-60e9-4c4d-9add-0fc498eba687/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 490983baa73e78cedc1fd82ca87154a66bb4f29bb6792de18df4399a6d4d2c54 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:50:55,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:50:56,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:50:56,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:50:56,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:50:56,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:50:56,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:50:56,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:50:56,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:50:56,066 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:50:56,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:50:56,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:50:56,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:50:56,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:50:56,068 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:50:56,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:50:56,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:50:56,070 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:50:56,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:50:56,070 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:50:56,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:50:56,070 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:50:56,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:50:56,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:50:56,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:50:56,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:50:56,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:50:56,073 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/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 -> 490983baa73e78cedc1fd82ca87154a66bb4f29bb6792de18df4399a6d4d2c54 [2024-11-23 22:50:56,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:50:56,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:50:56,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:50:56,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:50:56,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:50:56,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i [2024-11-23 22:50:59,727 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/278a2ca0a/fc0f17be471147329793b68ece17e214/FLAGe8abb47dd [2024-11-23 22:51:00,166 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:51:00,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i [2024-11-23 22:51:00,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/278a2ca0a/fc0f17be471147329793b68ece17e214/FLAGe8abb47dd [2024-11-23 22:51:00,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/278a2ca0a/fc0f17be471147329793b68ece17e214 [2024-11-23 22:51:00,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:51:00,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:51:00,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:00,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:51:00,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:51:00,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e82b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00, skipping insertion in model container [2024-11-23 22:51:00,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:51:00,397 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i[913,926] [2024-11-23 22:51:00,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:00,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:51:00,514 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i[913,926] [2024-11-23 22:51:00,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:00,591 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:51:00,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00 WrapperNode [2024-11-23 22:51:00,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:00,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:00,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:51:00,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:51:00,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,687 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155 [2024-11-23 22:51:00,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:00,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:51:00,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:51:00,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:51:00,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,738 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:51:00,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:51:00,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:51:00,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:51:00,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:51:00,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (1/1) ... [2024-11-23 22:51:00,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:00,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:00,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:51:00,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:51:00,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:51:00,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:51:00,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:51:00,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:51:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:51:00,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:51:00,950 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:51:00,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:51:01,387 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-23 22:51:01,388 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:51:01,406 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:51:01,410 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:51:01,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:01 BoogieIcfgContainer [2024-11-23 22:51:01,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:51:01,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:51:01,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:51:01,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:51:01,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:51:00" (1/3) ... [2024-11-23 22:51:01,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b278eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:01, skipping insertion in model container [2024-11-23 22:51:01,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:00" (2/3) ... [2024-11-23 22:51:01,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b278eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:01, skipping insertion in model container [2024-11-23 22:51:01,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:01" (3/3) ... [2024-11-23 22:51:01,426 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-56.i [2024-11-23 22:51:01,442 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:51:01,444 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-56.i that has 2 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:51:01,533 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:51:01,554 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;@3ff6cd1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:51:01,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:51:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:01,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:51:01,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:01,580 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:01,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:01,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:01,590 INFO L85 PathProgramCache]: Analyzing trace with hash 717215207, now seen corresponding path program 1 times [2024-11-23 22:51:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:01,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122609411] [2024-11-23 22:51:01,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:01,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-23 22:51:01,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:01,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122609411] [2024-11-23 22:51:01,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122609411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:51:01,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638111055] [2024-11-23 22:51:01,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:01,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:51:01,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:01,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:51:01,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:51:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:02,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:51:02,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:51:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-23 22:51:02,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:51:02,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638111055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:02,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:51:02,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:51:02,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643217937] [2024-11-23 22:51:02,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:02,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:51:02,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:02,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:51:02,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:02,361 INFO L87 Difference]: Start difference. First operand has 71 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 50 states have internal predecessors, (68), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:51:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:02,407 INFO L93 Difference]: Finished difference Result 135 states and 225 transitions. [2024-11-23 22:51:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:51:02,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-23 22:51:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:02,421 INFO L225 Difference]: With dead ends: 135 [2024-11-23 22:51:02,421 INFO L226 Difference]: Without dead ends: 67 [2024-11-23 22:51:02,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:02,429 INFO L435 NwaCegarLoop]: 99 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, 99 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 [2024-11-23 22:51:02,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-23 22:51:02,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-23 22:51:02,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:02,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 99 transitions. [2024-11-23 22:51:02,499 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 99 transitions. Word has length 124 [2024-11-23 22:51:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:02,501 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 99 transitions. [2024-11-23 22:51:02,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:51:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2024-11-23 22:51:02,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:51:02,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:02,507 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:02,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:51:02,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:51:02,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:02,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:02,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1725727131, now seen corresponding path program 1 times [2024-11-23 22:51:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:02,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116115052] [2024-11-23 22:51:02,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:02,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:06,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116115052] [2024-11-23 22:51:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116115052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:51:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748944965] [2024-11-23 22:51:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:06,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:51:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:06,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:51:06,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:06,842 INFO L87 Difference]: Start difference. First operand 67 states and 99 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:07,620 INFO L93 Difference]: Finished difference Result 206 states and 298 transitions. [2024-11-23 22:51:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:07,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 124 [2024-11-23 22:51:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:07,623 INFO L225 Difference]: With dead ends: 206 [2024-11-23 22:51:07,623 INFO L226 Difference]: Without dead ends: 142 [2024-11-23 22:51:07,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:07,624 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 92 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:07,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 453 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:51:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-23 22:51:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 80. [2024-11-23 22:51:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 120 transitions. [2024-11-23 22:51:07,638 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 120 transitions. Word has length 124 [2024-11-23 22:51:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:07,640 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 120 transitions. [2024-11-23 22:51:07,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2024-11-23 22:51:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:51:07,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:07,643 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:07,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:51:07,643 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:07,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1467561693, now seen corresponding path program 1 times [2024-11-23 22:51:07,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:07,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047815929] [2024-11-23 22:51:07,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047815929] [2024-11-23 22:51:22,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047815929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:22,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:22,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:51:22,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834712438] [2024-11-23 22:51:22,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:22,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:51:22,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:22,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:51:22,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:51:22,739 INFO L87 Difference]: Start difference. First operand 80 states and 120 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:23,345 INFO L93 Difference]: Finished difference Result 204 states and 300 transitions. [2024-11-23 22:51:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:23,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 124 [2024-11-23 22:51:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:23,352 INFO L225 Difference]: With dead ends: 204 [2024-11-23 22:51:23,355 INFO L226 Difference]: Without dead ends: 127 [2024-11-23 22:51:23,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:23,357 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:23,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 315 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:51:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-23 22:51:23,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 80. [2024-11-23 22:51:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 120 transitions. [2024-11-23 22:51:23,380 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 120 transitions. Word has length 124 [2024-11-23 22:51:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:23,385 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 120 transitions. [2024-11-23 22:51:23,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2024-11-23 22:51:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-23 22:51:23,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:23,388 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:23,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:51:23,388 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:23,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1982434151, now seen corresponding path program 1 times [2024-11-23 22:51:23,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:23,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752262178] [2024-11-23 22:51:23,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:23,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752262178] [2024-11-23 22:51:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752262178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:23,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:23,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:23,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560687254] [2024-11-23 22:51:23,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:23,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:23,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:23,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:23,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,512 INFO L87 Difference]: Start difference. First operand 80 states and 120 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:23,554 INFO L93 Difference]: Finished difference Result 158 states and 239 transitions. [2024-11-23 22:51:23,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:23,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 124 [2024-11-23 22:51:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:23,559 INFO L225 Difference]: With dead ends: 158 [2024-11-23 22:51:23,559 INFO L226 Difference]: Without dead ends: 81 [2024-11-23 22:51:23,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,564 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:23,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:23,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-23 22:51:23,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-23 22:51:23,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 60 states have internal predecessors, (83), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:23,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 121 transitions. [2024-11-23 22:51:23,582 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 121 transitions. Word has length 124 [2024-11-23 22:51:23,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:23,586 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 121 transitions. [2024-11-23 22:51:23,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 121 transitions. [2024-11-23 22:51:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:51:23,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:23,592 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:23,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:51:23,592 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:23,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash -821812644, now seen corresponding path program 1 times [2024-11-23 22:51:23,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939905905] [2024-11-23 22:51:23,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:23,712 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:23,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:23,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939905905] [2024-11-23 22:51:23,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939905905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:23,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:23,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:23,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721541101] [2024-11-23 22:51:23,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:23,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:23,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:23,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,717 INFO L87 Difference]: Start difference. First operand 81 states and 121 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:23,779 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2024-11-23 22:51:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:23,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2024-11-23 22:51:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:23,781 INFO L225 Difference]: With dead ends: 187 [2024-11-23 22:51:23,782 INFO L226 Difference]: Without dead ends: 109 [2024-11-23 22:51:23,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,783 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 33 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:23,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 171 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:51:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-23 22:51:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 95. [2024-11-23 22:51:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 74 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 143 transitions. [2024-11-23 22:51:23,801 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 143 transitions. Word has length 125 [2024-11-23 22:51:23,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:23,802 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 143 transitions. [2024-11-23 22:51:23,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 143 transitions. [2024-11-23 22:51:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-23 22:51:23,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:23,808 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:23,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:51:23,808 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:23,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1076882600, now seen corresponding path program 1 times [2024-11-23 22:51:23,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:23,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492655466] [2024-11-23 22:51:23,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:23,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:23,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:23,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492655466] [2024-11-23 22:51:23,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492655466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:23,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:23,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:23,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431838406] [2024-11-23 22:51:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:23,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:23,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:23,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:23,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,915 INFO L87 Difference]: Start difference. First operand 95 states and 143 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:23,989 INFO L93 Difference]: Finished difference Result 201 states and 300 transitions. [2024-11-23 22:51:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2024-11-23 22:51:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:23,993 INFO L225 Difference]: With dead ends: 201 [2024-11-23 22:51:23,994 INFO L226 Difference]: Without dead ends: 109 [2024-11-23 22:51:23,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:23,996 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 33 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:23,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 207 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:51:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-23 22:51:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2024-11-23 22:51:24,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 63 states have internal predecessors, (85), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:24,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2024-11-23 22:51:24,015 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 125 [2024-11-23 22:51:24,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:24,018 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2024-11-23 22:51:24,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2024-11-23 22:51:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:24,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:24,020 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:24,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:51:24,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:24,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:24,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1348444790, now seen corresponding path program 1 times [2024-11-23 22:51:24,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:24,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625913415] [2024-11-23 22:51:24,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:24,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:24,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:24,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625913415] [2024-11-23 22:51:24,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625913415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:24,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:24,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:51:24,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562504720] [2024-11-23 22:51:24,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:24,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:51:24,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:24,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:51:24,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:24,604 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:24,935 INFO L93 Difference]: Finished difference Result 194 states and 273 transitions. [2024-11-23 22:51:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:51:24,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:24,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:24,942 INFO L225 Difference]: With dead ends: 194 [2024-11-23 22:51:24,942 INFO L226 Difference]: Without dead ends: 192 [2024-11-23 22:51:24,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:51:24,943 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 130 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:24,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 588 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:51:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-23 22:51:24,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 150. [2024-11-23 22:51:24,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 113 states have (on average 1.3008849557522124) internal successors, (147), 114 states have internal predecessors, (147), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-23 22:51:24,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 215 transitions. [2024-11-23 22:51:24,968 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 215 transitions. Word has length 126 [2024-11-23 22:51:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:24,969 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 215 transitions. [2024-11-23 22:51:24,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 215 transitions. [2024-11-23 22:51:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:24,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:24,971 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:24,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:51:24,972 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:24,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash 993844826, now seen corresponding path program 1 times [2024-11-23 22:51:24,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:24,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094608196] [2024-11-23 22:51:24,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:25,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:25,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094608196] [2024-11-23 22:51:25,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094608196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:25,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:25,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:51:25,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38415216] [2024-11-23 22:51:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:25,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:51:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:25,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:51:25,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:51:25,182 INFO L87 Difference]: Start difference. First operand 150 states and 215 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:25,313 INFO L93 Difference]: Finished difference Result 400 states and 565 transitions. [2024-11-23 22:51:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:51:25,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:25,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:25,318 INFO L225 Difference]: With dead ends: 400 [2024-11-23 22:51:25,319 INFO L226 Difference]: Without dead ends: 253 [2024-11-23 22:51:25,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:51:25,320 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 51 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:25,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 281 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:51:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-23 22:51:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 248. [2024-11-23 22:51:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 201 states have (on average 1.2985074626865671) internal successors, (261), 204 states have internal predecessors, (261), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 345 transitions. [2024-11-23 22:51:25,350 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 345 transitions. Word has length 126 [2024-11-23 22:51:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:25,351 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 345 transitions. [2024-11-23 22:51:25,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 345 transitions. [2024-11-23 22:51:25,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:25,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:25,353 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:25,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:51:25,354 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:25,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:25,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1673903196, now seen corresponding path program 1 times [2024-11-23 22:51:25,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:25,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238021023] [2024-11-23 22:51:25,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:25,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:26,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238021023] [2024-11-23 22:51:26,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238021023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:26,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:26,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:51:26,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061145441] [2024-11-23 22:51:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:26,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:51:26,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:26,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:51:26,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:26,966 INFO L87 Difference]: Start difference. First operand 248 states and 345 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:27,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:27,533 INFO L93 Difference]: Finished difference Result 644 states and 884 transitions. [2024-11-23 22:51:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:27,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:27,539 INFO L225 Difference]: With dead ends: 644 [2024-11-23 22:51:27,539 INFO L226 Difference]: Without dead ends: 399 [2024-11-23 22:51:27,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:27,541 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 90 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:27,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 414 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:51:27,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-23 22:51:27,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 264. [2024-11-23 22:51:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 217 states have (on average 1.2995391705069124) internal successors, (282), 220 states have internal predecessors, (282), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 366 transitions. [2024-11-23 22:51:27,566 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 366 transitions. Word has length 126 [2024-11-23 22:51:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:27,567 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 366 transitions. [2024-11-23 22:51:27,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 366 transitions. [2024-11-23 22:51:27,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:27,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:27,569 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:27,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:51:27,569 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:27,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:27,570 INFO L85 PathProgramCache]: Analyzing trace with hash -17272424, now seen corresponding path program 1 times [2024-11-23 22:51:27,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:27,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124937549] [2024-11-23 22:51:27,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:27,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-23 22:51:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124937549] [2024-11-23 22:51:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124937549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:51:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93179895] [2024-11-23 22:51:27,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:27,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:51:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:27,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:51:27,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:51:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:27,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:51:27,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:51:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-11-23 22:51:28,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:51:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-23 22:51:28,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93179895] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:51:28,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:51:28,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-23 22:51:28,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371794079] [2024-11-23 22:51:28,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:51:28,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:51:28,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:28,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:51:28,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:28,305 INFO L87 Difference]: Start difference. First operand 264 states and 366 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 22:51:28,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:28,841 INFO L93 Difference]: Finished difference Result 628 states and 874 transitions. [2024-11-23 22:51:28,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 22:51:28,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 126 [2024-11-23 22:51:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:28,846 INFO L225 Difference]: With dead ends: 628 [2024-11-23 22:51:28,846 INFO L226 Difference]: Without dead ends: 367 [2024-11-23 22:51:28,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:51:28,848 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 266 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:28,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 239 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:51:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-23 22:51:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 239. [2024-11-23 22:51:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 191 states have (on average 1.2670157068062826) internal successors, (242), 194 states have internal predecessors, (242), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 326 transitions. [2024-11-23 22:51:28,880 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 326 transitions. Word has length 126 [2024-11-23 22:51:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:28,880 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 326 transitions. [2024-11-23 22:51:28,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 22:51:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 326 transitions. [2024-11-23 22:51:28,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:28,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:28,886 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:28,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 22:51:29,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 22:51:29,090 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:29,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:29,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1170860347, now seen corresponding path program 1 times [2024-11-23 22:51:29,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:29,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560053662] [2024-11-23 22:51:29,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:29,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:29,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:29,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560053662] [2024-11-23 22:51:29,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560053662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:29,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:29,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:29,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603301063] [2024-11-23 22:51:29,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:29,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:29,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:29,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:29,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:29,155 INFO L87 Difference]: Start difference. First operand 239 states and 326 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:29,204 INFO L93 Difference]: Finished difference Result 464 states and 632 transitions. [2024-11-23 22:51:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:29,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:29,207 INFO L225 Difference]: With dead ends: 464 [2024-11-23 22:51:29,207 INFO L226 Difference]: Without dead ends: 228 [2024-11-23 22:51:29,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:29,213 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:29,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-23 22:51:29,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-23 22:51:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 180 states have (on average 1.2444444444444445) internal successors, (224), 183 states have internal predecessors, (224), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:29,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 308 transitions. [2024-11-23 22:51:29,253 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 308 transitions. Word has length 126 [2024-11-23 22:51:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:29,254 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 308 transitions. [2024-11-23 22:51:29,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 308 transitions. [2024-11-23 22:51:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:29,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:29,258 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:29,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:51:29,258 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:29,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:29,259 INFO L85 PathProgramCache]: Analyzing trace with hash 159743097, now seen corresponding path program 1 times [2024-11-23 22:51:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:29,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629292330] [2024-11-23 22:51:29,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:34,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:34,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629292330] [2024-11-23 22:51:34,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629292330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:34,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:34,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:51:34,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123268643] [2024-11-23 22:51:34,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:34,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:51:34,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:34,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:51:34,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:34,005 INFO L87 Difference]: Start difference. First operand 228 states and 308 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:34,789 INFO L93 Difference]: Finished difference Result 529 states and 703 transitions. [2024-11-23 22:51:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:34,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:34,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:34,792 INFO L225 Difference]: With dead ends: 529 [2024-11-23 22:51:34,793 INFO L226 Difference]: Without dead ends: 304 [2024-11-23 22:51:34,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:51:34,794 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 101 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:34,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 618 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:51:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-23 22:51:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 229. [2024-11-23 22:51:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.2375690607734806) internal successors, (224), 184 states have internal predecessors, (224), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 308 transitions. [2024-11-23 22:51:34,822 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 308 transitions. Word has length 126 [2024-11-23 22:51:34,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:34,822 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 308 transitions. [2024-11-23 22:51:34,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 308 transitions. [2024-11-23 22:51:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 22:51:34,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:34,824 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:34,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:51:34,824 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:34,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:34,825 INFO L85 PathProgramCache]: Analyzing trace with hash -427062917, now seen corresponding path program 1 times [2024-11-23 22:51:34,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:34,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476605880] [2024-11-23 22:51:34,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:34,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:39,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:39,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476605880] [2024-11-23 22:51:39,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476605880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:39,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:39,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:51:39,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624098386] [2024-11-23 22:51:39,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:39,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:51:39,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:39,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:51:39,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:51:39,012 INFO L87 Difference]: Start difference. First operand 229 states and 308 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:39,562 INFO L93 Difference]: Finished difference Result 535 states and 707 transitions. [2024-11-23 22:51:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:39,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 126 [2024-11-23 22:51:39,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:39,565 INFO L225 Difference]: With dead ends: 535 [2024-11-23 22:51:39,565 INFO L226 Difference]: Without dead ends: 309 [2024-11-23 22:51:39,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:39,567 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 85 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:39,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 567 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:51:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-23 22:51:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 230. [2024-11-23 22:51:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 182 states have (on average 1.2307692307692308) internal successors, (224), 185 states have internal predecessors, (224), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 308 transitions. [2024-11-23 22:51:39,597 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 308 transitions. Word has length 126 [2024-11-23 22:51:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:39,598 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 308 transitions. [2024-11-23 22:51:39,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 308 transitions. [2024-11-23 22:51:39,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:51:39,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:39,600 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:39,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:51:39,600 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:39,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:39,601 INFO L85 PathProgramCache]: Analyzing trace with hash -768548048, now seen corresponding path program 1 times [2024-11-23 22:51:39,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:39,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573759688] [2024-11-23 22:51:39,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:39,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:39,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:39,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573759688] [2024-11-23 22:51:39,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573759688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:39,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:39,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580898781] [2024-11-23 22:51:39,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:39,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:39,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:39,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:39,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:39,681 INFO L87 Difference]: Start difference. First operand 230 states and 308 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:39,731 INFO L93 Difference]: Finished difference Result 519 states and 688 transitions. [2024-11-23 22:51:39,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:39,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 128 [2024-11-23 22:51:39,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:39,734 INFO L225 Difference]: With dead ends: 519 [2024-11-23 22:51:39,734 INFO L226 Difference]: Without dead ends: 292 [2024-11-23 22:51:39,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:39,736 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 53 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:39,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 213 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-23 22:51:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2024-11-23 22:51:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 226 states have (on average 1.176991150442478) internal successors, (266), 231 states have internal predecessors, (266), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 51 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-23 22:51:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 378 transitions. [2024-11-23 22:51:39,786 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 378 transitions. Word has length 128 [2024-11-23 22:51:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:39,789 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 378 transitions. [2024-11-23 22:51:39,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 378 transitions. [2024-11-23 22:51:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:51:39,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:39,791 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:39,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:51:39,791 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1105236389, now seen corresponding path program 1 times [2024-11-23 22:51:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41909567] [2024-11-23 22:51:39,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-23 22:51:39,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:39,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41909567] [2024-11-23 22:51:39,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41909567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:39,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:39,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:51:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284967770] [2024-11-23 22:51:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:39,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:51:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:39,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:51:39,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:39,859 INFO L87 Difference]: Start difference. First operand 291 states and 378 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:39,904 INFO L93 Difference]: Finished difference Result 584 states and 757 transitions. [2024-11-23 22:51:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:51:39,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 128 [2024-11-23 22:51:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:39,907 INFO L225 Difference]: With dead ends: 584 [2024-11-23 22:51:39,907 INFO L226 Difference]: Without dead ends: 296 [2024-11-23 22:51:39,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:51:39,909 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 39 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:39,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 186 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-23 22:51:39,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2024-11-23 22:51:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 212 states have (on average 1.179245283018868) internal successors, (250), 215 states have internal predecessors, (250), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 22:51:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 334 transitions. [2024-11-23 22:51:39,942 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 334 transitions. Word has length 128 [2024-11-23 22:51:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:39,943 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 334 transitions. [2024-11-23 22:51:39,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-23 22:51:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 334 transitions. [2024-11-23 22:51:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-23 22:51:39,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:39,944 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:39,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:51:39,944 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:39,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2144216366, now seen corresponding path program 1 times [2024-11-23 22:51:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82599166] [2024-11-23 22:51:39,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:39,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:51:39,981 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:51:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:51:40,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:51:40,053 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:51:40,054 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:51:40,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:51:40,059 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:40,149 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:51:40,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:51:40 BoogieIcfgContainer [2024-11-23 22:51:40,152 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:51:40,153 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:51:40,153 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:51:40,153 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:51:40,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:01" (3/4) ... [2024-11-23 22:51:40,156 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:51:40,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:51:40,158 INFO L158 Benchmark]: Toolchain (without parser) took 39951.34ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 106.4MB in the beginning and 452.0MB in the end (delta: -345.5MB). Peak memory consumption was 236.1MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,158 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:51:40,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.21ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 93.1MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.30ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 89.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,159 INFO L158 Benchmark]: Boogie Preprocessor took 94.83ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 84.5MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:51:40,160 INFO L158 Benchmark]: RCFGBuilder took 627.24ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 63.6MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,160 INFO L158 Benchmark]: TraceAbstraction took 38739.62ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 63.0MB in the beginning and 452.2MB in the end (delta: -389.2MB). Peak memory consumption was 185.8MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,160 INFO L158 Benchmark]: Witness Printer took 4.30ms. Allocated memory is still 721.4MB. Free memory was 452.2MB in the beginning and 452.0MB in the end (delta: 230.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:51:40,162 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.21ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 93.1MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.30ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 89.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.83ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 84.5MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 627.24ms. Allocated memory is still 142.6MB. Free memory was 84.5MB in the beginning and 63.6MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 38739.62ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 63.0MB in the beginning and 452.2MB in the end (delta: -389.2MB). Peak memory consumption was 185.8MB. Max. memory is 16.1GB. * Witness Printer took 4.30ms. Allocated memory is still 721.4MB. Free memory was 452.2MB in the beginning and 452.0MB in the end (delta: 230.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryDOUBLEComparisonOperation at line 106. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] signed char var_1_3 = 0; [L24] unsigned char var_1_5 = 128; [L25] unsigned char var_1_6 = 16; [L26] unsigned char var_1_7 = 2; [L27] unsigned char var_1_8 = 8; [L28] double var_1_9 = 10.5; [L29] unsigned char var_1_10 = 0; [L30] unsigned char var_1_12 = 0; [L31] double var_1_13 = 99.25; [L32] unsigned char var_1_14 = 64; [L33] unsigned char var_1_16 = 0; [L34] unsigned char var_1_17 = 0; [L35] unsigned char var_1_18 = 1; [L36] unsigned char last_1_var_1_14 = 64; VAL [isInitial=0, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L110] isInitial = 1 [L111] FCALL initially() [L113] CALL updateLastVariables() [L103] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L113] RET updateLastVariables() [L114] CALL updateVariables() [L72] var_1_3 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L73] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L74] CALL assume_abort_if_not(var_1_3 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L74] RET assume_abort_if_not(var_1_3 <= 16) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=128, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L75] var_1_5 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_5 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L76] RET assume_abort_if_not(var_1_5 >= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L77] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L77] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=16, var_1_7=2, var_1_8=8, var_1_9=21/2] [L78] var_1_6 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_7=2, var_1_8=8, var_1_9=21/2] [L79] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_7=2, var_1_8=8, var_1_9=21/2] [L80] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=2, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=2, var_1_8=8, var_1_9=21/2] [L80] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=2, var_1_8=8, var_1_9=21/2] [L81] var_1_7 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_8=8, var_1_9=21/2] [L82] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_8=8, var_1_9=21/2] [L83] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=8, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=8, var_1_9=21/2] [L83] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=8, var_1_9=21/2] [L84] var_1_8 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_9=21/2] [L85] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_9=21/2] [L86] CALL assume_abort_if_not(var_1_8 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L86] RET assume_abort_if_not(var_1_8 <= 64) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=0, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L87] var_1_10 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L88] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L89] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L89] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=0, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L90] var_1_12 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L91] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L92] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L92] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=397/4, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L93] var_1_13 = __VERIFIER_nondet_double() [L94] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L94] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L95] var_1_17 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L96] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L97] CALL assume_abort_if_not(var_1_17 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L97] RET assume_abort_if_not(var_1_17 <= 0) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=1, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L98] var_1_18 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L99] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L100] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L100] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L114] RET updateVariables() [L115] CALL step() [L40] EXPR last_1_var_1_14 >> var_1_3 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=1, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L40] COND TRUE (last_1_var_1_14 >> var_1_3) >= last_1_var_1_14 [L41] var_1_1 = ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L45] COND FALSE !((var_1_8 + var_1_1) >= var_1_7) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L48] COND TRUE var_1_12 || var_1_10 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L49] EXPR var_1_8 << var_1_3 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=0, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L49] COND FALSE !(var_1_1 >= (var_1_8 << var_1_3)) [L56] var_1_16 = var_1_18 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L61] unsigned char stepLocal_1 = var_1_14; [L62] unsigned char stepLocal_0 = var_1_16; VAL [isInitial=1, last_1_var_1_14=64, stepLocal_0=-255, stepLocal_1=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L63] COND TRUE \read(var_1_16) VAL [isInitial=1, last_1_var_1_14=64, stepLocal_0=-255, stepLocal_1=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L64] COND TRUE stepLocal_0 || var_1_16 VAL [isInitial=1, last_1_var_1_14=64, stepLocal_1=64, var_1_10=1, var_1_12=1, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=21/2] [L65] COND TRUE stepLocal_1 > var_1_6 [L66] var_1_9 = var_1_13 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=259, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=259] [L115] RET step() [L116] CALL, EXPR property() [L106] EXPR last_1_var_1_14 >> var_1_3 VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=259, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=259] [L106] EXPR (((((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) ? (var_1_1 == ((unsigned char) ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))))) : (var_1_1 == ((unsigned char) (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7))))))) && (var_1_16 ? ((var_1_16 || var_1_16) ? ((var_1_14 > var_1_6) ? (var_1_9 == ((double) var_1_13)) : 1) : 1) : 1)) && (((var_1_8 + var_1_1) >= var_1_7) ? (var_1_14 == ((unsigned char) var_1_6)) : 1)) && ((var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17))) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=259, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=259] [L106-L107] return (((((last_1_var_1_14 >> var_1_3) >= last_1_var_1_14) ? (var_1_1 == ((unsigned char) ((((var_1_3) < ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7)))))) ? (var_1_3) : ((var_1_5 - ((((var_1_6) > (var_1_7)) ? (var_1_6) : (var_1_7))))))))) : (var_1_1 == ((unsigned char) (((((var_1_6) < (var_1_3)) ? (var_1_6) : (var_1_3))) + (((((var_1_8 + 1)) < (var_1_7)) ? ((var_1_8 + 1)) : (var_1_7))))))) && (var_1_16 ? ((var_1_16 || var_1_16) ? ((var_1_14 > var_1_6) ? (var_1_9 == ((double) var_1_13)) : 1) : 1) : 1)) && (((var_1_8 + var_1_1) >= var_1_7) ? (var_1_14 == ((unsigned char) var_1_6)) : 1)) && ((var_1_12 || var_1_10) ? ((var_1_1 >= (var_1_8 << var_1_3)) ? ((var_1_6 > var_1_7) ? (var_1_16 == ((unsigned char) var_1_17)) : (var_1_16 == ((unsigned char) 1))) : (var_1_16 == ((unsigned char) var_1_18))) : (var_1_16 == ((unsigned char) var_1_17))) ; [L116] RET, EXPR property() [L116] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=259, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=259] [L19] reach_error() VAL [isInitial=1, last_1_var_1_14=64, var_1_10=1, var_1_12=1, var_1_13=259, var_1_14=64, var_1_16=-255, var_1_17=0, var_1_18=-255, var_1_1=0, var_1_3=0, var_1_5=254, var_1_6=63, var_1_7=3, var_1_8=1, var_1_9=259] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.6s, OverallIterations: 16, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1066 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1049 mSDsluCounter, 4719 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3168 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1571 IncrementalHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 1551 mSDtfsCounter, 1571 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 485 GetRequests, 411 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=14, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 647 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 2262 NumberOfCodeBlocks, 2262 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2242 ConstructedInterpolants, 0 QuantifiedInterpolants, 8098 SizeOfPredicates, 2 NumberOfNonLiveVariables, 563 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 12258/12312 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 22:51:40,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/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_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/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 490983baa73e78cedc1fd82ca87154a66bb4f29bb6792de18df4399a6d4d2c54 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:51:42,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:51:43,041 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:51:43,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:51:43,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:51:43,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:51:43,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:51:43,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:51:43,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:51:43,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:51:43,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:51:43,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:51:43,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:51:43,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:51:43,128 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:51:43,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:51:43,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:51:43,129 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:51:43,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:51:43,130 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:51:43,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:51:43,130 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:51:43,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:43,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:43,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:43,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:43,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:51:43,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:43,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:43,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:43,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:43,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:51:43,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:51:43,133 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:51:43,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:51:43,134 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:51:43,134 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:51:43,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:51:43,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:51:43,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:51:43,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:51:43,135 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/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 -> 490983baa73e78cedc1fd82ca87154a66bb4f29bb6792de18df4399a6d4d2c54 [2024-11-23 22:51:43,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:51:43,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:51:43,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:51:43,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:51:43,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:51:43,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i [2024-11-23 22:51:46,631 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/15b13c5ea/ea2dda2d403c4d778e0ec8bb72878bcb/FLAG32015f9a3 [2024-11-23 22:51:46,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:51:46,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i [2024-11-23 22:51:46,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/15b13c5ea/ea2dda2d403c4d778e0ec8bb72878bcb/FLAG32015f9a3 [2024-11-23 22:51:46,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/data/15b13c5ea/ea2dda2d403c4d778e0ec8bb72878bcb [2024-11-23 22:51:47,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:51:47,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:51:47,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:47,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:51:47,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:51:47,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:46" (1/1) ... [2024-11-23 22:51:47,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff82df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47, skipping insertion in model container [2024-11-23 22:51:47,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:46" (1/1) ... [2024-11-23 22:51:47,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:51:47,238 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i[913,926] [2024-11-23 22:51:47,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:47,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:51:47,341 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_eccc44ad-60e9-4c4d-9add-0fc498eba687/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-56.i[913,926] [2024-11-23 22:51:47,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:47,389 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:51:47,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47 WrapperNode [2024-11-23 22:51:47,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:47,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:47,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:51:47,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:51:47,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,431 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-23 22:51:47,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:47,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:51:47,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:51:47,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:51:47,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,456 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:51:47,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,465 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:51:47,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:51:47,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:51:47,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:51:47,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (1/1) ... [2024-11-23 22:51:47,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:47,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:47,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:51:47,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:51:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:51:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:51:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:51:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:51:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:51:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:51:47,607 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:51:47,609 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:51:47,926 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-23 22:51:47,926 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:51:47,936 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:51:47,936 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:51:47,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:47 BoogieIcfgContainer [2024-11-23 22:51:47,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:51:47,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:51:47,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:51:47,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:51:47,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:51:46" (1/3) ... [2024-11-23 22:51:47,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cdd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:47, skipping insertion in model container [2024-11-23 22:51:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:47" (2/3) ... [2024-11-23 22:51:47,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cdd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:47, skipping insertion in model container [2024-11-23 22:51:47,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:47" (3/3) ... [2024-11-23 22:51:47,950 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-56.i [2024-11-23 22:51:47,967 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:51:47,969 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-56.i that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:51:48,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:51:48,062 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;@5af33fc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:51:48,063 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:51:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 36 states have internal predecessors, (48), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:51:48,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:48,082 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:48,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:48,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2146284140, now seen corresponding path program 1 times [2024-11-23 22:51:48,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:51:48,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955593384] [2024-11-23 22:51:48,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:48,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:51:48,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:51:48,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:51:48,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:51:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:48,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:51:48,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:51:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-23 22:51:48,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:51:48,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:51:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955593384] [2024-11-23 22:51:48,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955593384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:48,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:48,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:51:48,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551282595] [2024-11-23 22:51:48,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:48,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:51:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:51:48,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:51:48,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:48,406 INFO L87 Difference]: Start difference. First operand has 57 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 36 states have internal predecessors, (48), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:51:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:48,435 INFO L93 Difference]: Finished difference Result 107 states and 185 transitions. [2024-11-23 22:51:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:51:48,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2024-11-23 22:51:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:48,443 INFO L225 Difference]: With dead ends: 107 [2024-11-23 22:51:48,443 INFO L226 Difference]: Without dead ends: 53 [2024-11-23 22:51:48,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:48,450 INFO L435 NwaCegarLoop]: 79 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, 79 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 [2024-11-23 22:51:48,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-23 22:51:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-23 22:51:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 22:51:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions. [2024-11-23 22:51:48,494 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 79 transitions. Word has length 119 [2024-11-23 22:51:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:48,494 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 79 transitions. [2024-11-23 22:51:48,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:51:48,495 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2024-11-23 22:51:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:51:48,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:48,499 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:48,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 22:51:48,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:51:48,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:48,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2079666602, now seen corresponding path program 1 times [2024-11-23 22:51:48,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:51:48,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956914948] [2024-11-23 22:51:48,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:48,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:51:48,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:51:48,711 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:51:48,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eccc44ad-60e9-4c4d-9add-0fc498eba687/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:51:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:48,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 22:51:48,866 INFO L279 TraceCheckSpWp]: Computing forward predicates...