./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a997cf687e351b7f57245bd31acb8cec29ed906aad11e6b7eee545da7afcb34c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:22:51,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:22:51,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:22:51,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:22:51,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:22:51,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:22:51,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:22:51,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:22:51,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:22:51,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:22:51,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:22:51,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:22:51,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:22:51,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:22:51,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:22:51,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:22:51,114 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:22:51,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:22:51,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:22:51,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:22:51,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:22:51,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:22:51,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:22:51,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:22:51,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:22:51,116 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_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a997cf687e351b7f57245bd31acb8cec29ed906aad11e6b7eee545da7afcb34c [2024-12-02 11:22:51,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:22:51,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:22:51,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:22:51,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:22:51,331 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:22:51,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i [2024-12-02 11:22:54,001 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/data/a497953a6/0cac6bd4049643a1ac547a0654a5f2b7/FLAGccaddea32 [2024-12-02 11:22:54,184 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:22:54,184 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i [2024-12-02 11:22:54,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/data/a497953a6/0cac6bd4049643a1ac547a0654a5f2b7/FLAGccaddea32 [2024-12-02 11:22:54,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/data/a497953a6/0cac6bd4049643a1ac547a0654a5f2b7 [2024-12-02 11:22:54,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:22:54,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:22:54,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:22:54,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:22:54,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:22:54,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b1e8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54, skipping insertion in model container [2024-12-02 11:22:54,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:22:54,329 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_e91ecf11-11b0-4cad-83d6-eb41bda8285f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i[919,932] [2024-12-02 11:22:54,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:22:54,389 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:22:54,396 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_e91ecf11-11b0-4cad-83d6-eb41bda8285f/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-58.i[919,932] [2024-12-02 11:22:54,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:22:54,428 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:22:54,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54 WrapperNode [2024-12-02 11:22:54,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:22:54,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:22:54,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:22:54,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:22:54,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,472 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-12-02 11:22:54,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:22:54,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:22:54,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:22:54,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:22:54,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,499 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]. [2024-12-02 11:22:54,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:22:54,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:22:54,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:22:54,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:22:54,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (1/1) ... [2024-12-02 11:22:54,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:22:54,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:22:54,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:22:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:22:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:22:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:22:54,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:22:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:22:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:22:54,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:22:54,635 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:22:54,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:22:54,905 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-02 11:22:54,906 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:22:54,915 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:22:54,915 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:22:54,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:22:54 BoogieIcfgContainer [2024-12-02 11:22:54,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:22:54,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:22:54,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:22:54,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:22:54,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:22:54" (1/3) ... [2024-12-02 11:22:54,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e69b9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:22:54, skipping insertion in model container [2024-12-02 11:22:54,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:22:54" (2/3) ... [2024-12-02 11:22:54,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e69b9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:22:54, skipping insertion in model container [2024-12-02 11:22:54,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:22:54" (3/3) ... [2024-12-02 11:22:54,923 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-58.i [2024-12-02 11:22:54,934 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:22:54,935 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-58.i that has 2 procedures, 67 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:22:54,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:22:54,986 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;@24f6f8ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:22:54,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:22:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 11:22:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:22:54,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:22:54,999 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:22:54,999 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:22:55,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:22:55,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1394519631, now seen corresponding path program 1 times [2024-12-02 11:22:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:22:55,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773311138] [2024-12-02 11:22:55,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:22:55,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:22:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-12-02 11:26:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773311138] [2024-12-02 11:26:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773311138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:44,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:26:44,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708444739] [2024-12-02 11:26:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:44,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:26:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:44,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:26:44,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:26:44,680 INFO L87 Difference]: Start difference. First operand has 67 states, 40 states have (on average 1.4) internal successors, (56), 41 states have internal predecessors, (56), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:26:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:46,075 INFO L93 Difference]: Finished difference Result 174 states and 302 transitions. [2024-12-02 11:26:46,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:26:46,078 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 148 [2024-12-02 11:26:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:46,083 INFO L225 Difference]: With dead ends: 174 [2024-12-02 11:26:46,084 INFO L226 Difference]: Without dead ends: 110 [2024-12-02 11:26:46,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:26:46,088 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 126 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:46,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 428 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:26:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-12-02 11:26:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 72. [2024-12-02 11:26:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 11:26:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 111 transitions. [2024-12-02 11:26:46,123 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 111 transitions. Word has length 148 [2024-12-02 11:26:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:46,125 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 111 transitions. [2024-12-02 11:26:46,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:26:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 111 transitions. [2024-12-02 11:26:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:26:46,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:46,128 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:46,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:26:46,129 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:46,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:46,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1001492621, now seen corresponding path program 1 times [2024-12-02 11:26:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703774488] [2024-12-02 11:26:46,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-12-02 11:26:46,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703774488] [2024-12-02 11:26:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703774488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:46,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:26:46,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86975972] [2024-12-02 11:26:46,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:46,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:26:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:46,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:26:46,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:26:46,319 INFO L87 Difference]: Start difference. First operand 72 states and 111 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 11:26:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:46,515 INFO L93 Difference]: Finished difference Result 209 states and 322 transitions. [2024-12-02 11:26:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:26:46,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 148 [2024-12-02 11:26:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:46,518 INFO L225 Difference]: With dead ends: 209 [2024-12-02 11:26:46,518 INFO L226 Difference]: Without dead ends: 140 [2024-12-02 11:26:46,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:26:46,520 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 84 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:46,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 373 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:26:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-12-02 11:26:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 131. [2024-12-02 11:26:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 11:26:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 205 transitions. [2024-12-02 11:26:46,546 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 205 transitions. Word has length 148 [2024-12-02 11:26:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:46,546 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 205 transitions. [2024-12-02 11:26:46,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 11:26:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 205 transitions. [2024-12-02 11:26:46,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:26:46,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:46,549 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:46,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:26:46,549 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:46,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1810839247, now seen corresponding path program 1 times [2024-12-02 11:26:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765535462] [2024-12-02 11:26:46,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:46,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:32:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-12-02 11:32:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:32:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765535462] [2024-12-02 11:32:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765535462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:32:15,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:32:15,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:32:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933448823] [2024-12-02 11:32:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:32:15,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:32:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:32:15,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:32:15,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:32:15,113 INFO L87 Difference]: Start difference. First operand 131 states and 205 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:32:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:32:16,376 INFO L93 Difference]: Finished difference Result 182 states and 274 transitions. [2024-12-02 11:32:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:32:16,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 148 [2024-12-02 11:32:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:32:16,379 INFO L225 Difference]: With dead ends: 182 [2024-12-02 11:32:16,379 INFO L226 Difference]: Without dead ends: 180 [2024-12-02 11:32:16,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:32:16,380 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 52 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:32:16,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 389 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:32:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-12-02 11:32:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 133. [2024-12-02 11:32:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 82 states have internal predecessors, (112), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 11:32:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 208 transitions. [2024-12-02 11:32:16,404 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 208 transitions. Word has length 148 [2024-12-02 11:32:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:32:16,404 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 208 transitions. [2024-12-02 11:32:16,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:32:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 208 transitions. [2024-12-02 11:32:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 11:32:16,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:32:16,408 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:32:16,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:32:16,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:32:16,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:32:16,409 INFO L85 PathProgramCache]: Analyzing trace with hash 333937417, now seen corresponding path program 1 times [2024-12-02 11:32:16,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:32:16,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192274506] [2024-12-02 11:32:16,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:32:16,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:32:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-12-02 11:37:21,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:21,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192274506] [2024-12-02 11:37:21,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192274506] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:37:21,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:37:21,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:37:21,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097096759] [2024-12-02 11:37:21,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:37:21,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:37:21,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:21,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:37:21,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:37:21,797 INFO L87 Difference]: Start difference. First operand 133 states and 208 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:37:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:26,931 INFO L93 Difference]: Finished difference Result 186 states and 280 transitions. [2024-12-02 11:37:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:37:26,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 149 [2024-12-02 11:37:26,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:26,933 INFO L225 Difference]: With dead ends: 186 [2024-12-02 11:37:26,933 INFO L226 Difference]: Without dead ends: 184 [2024-12-02 11:37:26,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:37:26,934 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 64 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:26,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 488 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:37:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-12-02 11:37:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 139. [2024-12-02 11:37:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 88 states have internal predecessors, (123), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 11:37:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 219 transitions. [2024-12-02 11:37:26,956 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 219 transitions. Word has length 149 [2024-12-02 11:37:26,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:26,956 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 219 transitions. [2024-12-02 11:37:26,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 11:37:26,957 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 219 transitions. [2024-12-02 11:37:26,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 11:37:26,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:26,959 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:26,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:37:26,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:26,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:26,959 INFO L85 PathProgramCache]: Analyzing trace with hash 531507807, now seen corresponding path program 1 times [2024-12-02 11:37:26,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636022847] [2024-12-02 11:37:26,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 63 proven. 6 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-12-02 11:37:27,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:37:27,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636022847] [2024-12-02 11:37:27,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636022847] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:37:27,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570845063] [2024-12-02 11:37:27,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:27,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:37:27,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:37:27,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:37:27,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:37:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:37:27,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:37:27,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:37:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 233 proven. 6 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2024-12-02 11:37:27,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:37:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 63 proven. 6 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-12-02 11:37:27,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570845063] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:37:27,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:37:27,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 11:37:27,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403434204] [2024-12-02 11:37:27,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:37:27,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:37:27,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:37:27,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:37:27,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:37:27,537 INFO L87 Difference]: Start difference. First operand 139 states and 219 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 11:37:27,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:37:27,724 INFO L93 Difference]: Finished difference Result 287 states and 445 transitions. [2024-12-02 11:37:27,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:37:27,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 149 [2024-12-02 11:37:27,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:37:27,727 INFO L225 Difference]: With dead ends: 287 [2024-12-02 11:37:27,727 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 11:37:27,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:37:27,729 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 57 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:37:27,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 153 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:37:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 11:37:27,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2024-12-02 11:37:27,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.351063829787234) internal successors, (127), 94 states have internal predecessors, (127), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-02 11:37:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 223 transitions. [2024-12-02 11:37:27,750 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 223 transitions. Word has length 149 [2024-12-02 11:37:27,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:37:27,751 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 223 transitions. [2024-12-02 11:37:27,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 11:37:27,751 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 223 transitions. [2024-12-02 11:37:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 11:37:27,753 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:27,753 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:27,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:37:27,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ecf11-11b0-4cad-83d6-eb41bda8285f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:37:27,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:37:27,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:27,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1035001995, now seen corresponding path program 1 times [2024-12-02 11:37:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:27,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116660834] [2024-12-02 11:37:27,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat