./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c --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_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/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_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/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_49e407bf-69f8-4e87-84d1-769429f219ca/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 8601bc506460b86c86c44bb88543b6ddef5f967e49099ec52accd1d75c17e018 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:50:35,426 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:50:35,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:50:35,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:50:35,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:50:35,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:50:35,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:50:35,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:50:35,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:50:35,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:50:35,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:50:35,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:50:35,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:50:35,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:50:35,600 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:50:35,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:50:35,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:50:35,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:35,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:35,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:35,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:50:35,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:50:35,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:50:35,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:50:35,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:50:35,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:50:35,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:50:35,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:50:35,606 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_49e407bf-69f8-4e87-84d1-769429f219ca/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 -> 8601bc506460b86c86c44bb88543b6ddef5f967e49099ec52accd1d75c17e018 [2024-11-24 00:50:35,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:50:35,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:50:35,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:50:35,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:50:35,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:50:35,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2024-11-24 00:50:39,238 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/data/0366e5858/40051b0a3eb74ec1a68aa0e1d10c7290/FLAG62d586d16 [2024-11-24 00:50:39,689 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:50:39,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2024-11-24 00:50:39,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/data/0366e5858/40051b0a3eb74ec1a68aa0e1d10c7290/FLAG62d586d16 [2024-11-24 00:50:39,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/data/0366e5858/40051b0a3eb74ec1a68aa0e1d10c7290 [2024-11-24 00:50:39,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:50:39,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:50:39,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:50:39,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:50:39,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:50:39,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:50:39" (1/1) ... [2024-11-24 00:50:39,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd4faae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:39, skipping insertion in model container [2024-11-24 00:50:39,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:50:39" (1/1) ... [2024-11-24 00:50:39,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:50:40,186 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_49e407bf-69f8-4e87-84d1-769429f219ca/sv-benchmarks/c/eca-rers2012/Problem02_label55.c[17358,17371] [2024-11-24 00:50:40,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:50:40,231 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:50:40,321 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_49e407bf-69f8-4e87-84d1-769429f219ca/sv-benchmarks/c/eca-rers2012/Problem02_label55.c[17358,17371] [2024-11-24 00:50:40,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:50:40,375 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:50:40,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40 WrapperNode [2024-11-24 00:50:40,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:50:40,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:50:40,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:50:40,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:50:40,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,490 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2024-11-24 00:50:40,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:50:40,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:50:40,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:50:40,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:50:40,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,535 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]. [2024-11-24 00:50:40,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:50:40,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:50:40,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:50:40,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:50:40,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (1/1) ... [2024-11-24 00:50:40,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:50:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:50:40,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:50:40,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:50:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:50:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:50:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:50:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:50:40,738 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:50:40,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:50:42,235 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-24 00:50:42,236 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:50:42,262 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:50:42,262 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:50:42,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:50:42 BoogieIcfgContainer [2024-11-24 00:50:42,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:50:42,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:50:42,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:50:42,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:50:42,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:50:39" (1/3) ... [2024-11-24 00:50:42,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6dd85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:50:42, skipping insertion in model container [2024-11-24 00:50:42,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:50:40" (2/3) ... [2024-11-24 00:50:42,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6dd85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:50:42, skipping insertion in model container [2024-11-24 00:50:42,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:50:42" (3/3) ... [2024-11-24 00:50:42,276 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2024-11-24 00:50:42,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:50:42,299 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem02_label55.c that has 1 procedures, 227 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:50:42,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:50:42,399 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;@6d941ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:50:42,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:50:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:50:42,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:42,418 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:42,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:42,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash -673842037, now seen corresponding path program 1 times [2024-11-24 00:50:42,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:42,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367221514] [2024-11-24 00:50:42,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:42,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:50:43,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:43,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367221514] [2024-11-24 00:50:43,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367221514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:43,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:43,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:50:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441158211] [2024-11-24 00:50:43,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:43,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:43,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:43,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:43,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:43,344 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:44,524 INFO L93 Difference]: Finished difference Result 639 states and 1082 transitions. [2024-11-24 00:50:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-24 00:50:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:44,542 INFO L225 Difference]: With dead ends: 639 [2024-11-24 00:50:44,542 INFO L226 Difference]: Without dead ends: 318 [2024-11-24 00:50:44,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:44,556 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 104 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:44,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:50:44,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-24 00:50:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2024-11-24 00:50:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4711538461538463) internal successors, (459), 312 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2024-11-24 00:50:44,625 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 105 [2024-11-24 00:50:44,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:44,628 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2024-11-24 00:50:44,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2024-11-24 00:50:44,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:50:44,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:44,640 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:44,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:50:44,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:44,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash -530640512, now seen corresponding path program 1 times [2024-11-24 00:50:44,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:44,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353459754] [2024-11-24 00:50:44,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:44,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:50:45,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353459754] [2024-11-24 00:50:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353459754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:45,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682625044] [2024-11-24 00:50:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:45,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:50:45,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:45,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:50:45,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:50:45,559 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:46,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:46,792 INFO L93 Difference]: Finished difference Result 989 states and 1492 transitions. [2024-11-24 00:50:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:50:46,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-24 00:50:46,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:46,798 INFO L225 Difference]: With dead ends: 989 [2024-11-24 00:50:46,798 INFO L226 Difference]: Without dead ends: 595 [2024-11-24 00:50:46,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:50:46,800 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 170 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:46,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 106 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:50:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-24 00:50:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-11-24 00:50:46,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.3383838383838385) internal successors, (795), 594 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 795 transitions. [2024-11-24 00:50:46,841 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 795 transitions. Word has length 109 [2024-11-24 00:50:46,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:46,841 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 795 transitions. [2024-11-24 00:50:46,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 795 transitions. [2024-11-24 00:50:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-24 00:50:46,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:46,847 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:46,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:50:46,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:46,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash 507533875, now seen corresponding path program 1 times [2024-11-24 00:50:46,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:46,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190161195] [2024-11-24 00:50:46,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:46,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:50:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:47,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190161195] [2024-11-24 00:50:47,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190161195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:47,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:47,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:50:47,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941293478] [2024-11-24 00:50:47,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:47,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:47,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:47,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:47,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:47,049 INFO L87 Difference]: Start difference. First operand 595 states and 795 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:47,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:47,785 INFO L93 Difference]: Finished difference Result 1753 states and 2346 transitions. [2024-11-24 00:50:47,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:47,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-24 00:50:47,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:47,793 INFO L225 Difference]: With dead ends: 1753 [2024-11-24 00:50:47,793 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 00:50:47,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:47,799 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 124 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:47,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 129 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:50:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 00:50:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1157. [2024-11-24 00:50:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.208477508650519) internal successors, (1397), 1156 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1397 transitions. [2024-11-24 00:50:47,875 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1397 transitions. Word has length 135 [2024-11-24 00:50:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:47,876 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1397 transitions. [2024-11-24 00:50:47,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1397 transitions. [2024-11-24 00:50:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:50:47,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:47,881 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:47,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:50:47,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:47,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:47,882 INFO L85 PathProgramCache]: Analyzing trace with hash 783324177, now seen corresponding path program 1 times [2024-11-24 00:50:47,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:47,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124031964] [2024-11-24 00:50:47,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:47,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:50:48,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:48,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124031964] [2024-11-24 00:50:48,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124031964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:48,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:48,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:48,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490597956] [2024-11-24 00:50:48,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:48,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:48,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:48,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:48,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:48,072 INFO L87 Difference]: Start difference. First operand 1157 states and 1397 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:48,747 INFO L93 Difference]: Finished difference Result 2733 states and 3360 transitions. [2024-11-24 00:50:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:48,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-24 00:50:48,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:48,753 INFO L225 Difference]: With dead ends: 2733 [2024-11-24 00:50:48,754 INFO L226 Difference]: Without dead ends: 1150 [2024-11-24 00:50:48,755 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 [2024-11-24 00:50:48,759 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 133 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:48,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 276 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:48,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-24 00:50:48,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1150. [2024-11-24 00:50:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 1.1766753698868582) internal successors, (1352), 1149 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:48,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1352 transitions. [2024-11-24 00:50:48,798 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1352 transitions. Word has length 143 [2024-11-24 00:50:48,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:48,798 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1352 transitions. [2024-11-24 00:50:48,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:48,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1352 transitions. [2024-11-24 00:50:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 00:50:48,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:48,803 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:48,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:50:48,803 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:48,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:48,804 INFO L85 PathProgramCache]: Analyzing trace with hash 427491692, now seen corresponding path program 1 times [2024-11-24 00:50:48,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:48,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565722034] [2024-11-24 00:50:48,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:48,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:50:49,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:49,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565722034] [2024-11-24 00:50:49,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565722034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:49,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:49,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:49,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317672007] [2024-11-24 00:50:49,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:49,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:49,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:49,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:49,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:49,036 INFO L87 Difference]: Start difference. First operand 1150 states and 1352 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:49,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:49,714 INFO L93 Difference]: Finished difference Result 2719 states and 3222 transitions. [2024-11-24 00:50:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:49,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-11-24 00:50:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:49,722 INFO L225 Difference]: With dead ends: 2719 [2024-11-24 00:50:49,722 INFO L226 Difference]: Without dead ends: 1571 [2024-11-24 00:50:49,725 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 [2024-11-24 00:50:49,728 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 113 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:49,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 246 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2024-11-24 00:50:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1570. [2024-11-24 00:50:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.1414913957934991) internal successors, (1791), 1569 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:49,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1791 transitions. [2024-11-24 00:50:49,787 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1791 transitions. Word has length 146 [2024-11-24 00:50:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:49,788 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 1791 transitions. [2024-11-24 00:50:49,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1791 transitions. [2024-11-24 00:50:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 00:50:49,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:49,795 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:49,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:50:49,796 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:49,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2115525110, now seen corresponding path program 1 times [2024-11-24 00:50:49,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:49,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144846265] [2024-11-24 00:50:49,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:50:50,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:50,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144846265] [2024-11-24 00:50:50,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144846265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:50,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:50,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:50,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177310482] [2024-11-24 00:50:50,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:50,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:50,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:50,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:50,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:50,019 INFO L87 Difference]: Start difference. First operand 1570 states and 1791 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:50,697 INFO L93 Difference]: Finished difference Result 3561 states and 4143 transitions. [2024-11-24 00:50:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2024-11-24 00:50:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:50,706 INFO L225 Difference]: With dead ends: 3561 [2024-11-24 00:50:50,706 INFO L226 Difference]: Without dead ends: 1993 [2024-11-24 00:50:50,713 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 [2024-11-24 00:50:50,714 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 130 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:50,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 224 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:50:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-11-24 00:50:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1992. [2024-11-24 00:50:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1991 states have (on average 1.1567051732797589) internal successors, (2303), 1991 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:50,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 2303 transitions. [2024-11-24 00:50:50,777 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 2303 transitions. Word has length 167 [2024-11-24 00:50:50,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:50,779 INFO L471 AbstractCegarLoop]: Abstraction has 1992 states and 2303 transitions. [2024-11-24 00:50:50,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:50,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 2303 transitions. [2024-11-24 00:50:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:50:50,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:50,786 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:50,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:50:50,787 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:50,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2076121195, now seen corresponding path program 1 times [2024-11-24 00:50:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:50,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436248623] [2024-11-24 00:50:50,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:50:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:50,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436248623] [2024-11-24 00:50:50,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436248623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:50,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:50,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:50,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339865143] [2024-11-24 00:50:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:50,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:50,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:50,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:50,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:50,976 INFO L87 Difference]: Start difference. First operand 1992 states and 2303 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:51,570 INFO L93 Difference]: Finished difference Result 3981 states and 4605 transitions. [2024-11-24 00:50:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:51,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2024-11-24 00:50:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:51,580 INFO L225 Difference]: With dead ends: 3981 [2024-11-24 00:50:51,580 INFO L226 Difference]: Without dead ends: 1851 [2024-11-24 00:50:51,583 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 [2024-11-24 00:50:51,584 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 103 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:51,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 262 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2024-11-24 00:50:51,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1847. [2024-11-24 00:50:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1846 states have (on average 1.1229685807150596) internal successors, (2073), 1846 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2073 transitions. [2024-11-24 00:50:51,640 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2073 transitions. Word has length 179 [2024-11-24 00:50:51,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:51,641 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2073 transitions. [2024-11-24 00:50:51,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2073 transitions. [2024-11-24 00:50:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-24 00:50:51,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:51,647 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:51,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:50:51,648 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:51,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1889614486, now seen corresponding path program 1 times [2024-11-24 00:50:51,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:51,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960872694] [2024-11-24 00:50:51,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:51,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-24 00:50:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:51,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960872694] [2024-11-24 00:50:51,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960872694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:51,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:51,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:51,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949196378] [2024-11-24 00:50:51,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:51,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:51,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:51,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:51,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:51,843 INFO L87 Difference]: Start difference. First operand 1847 states and 2073 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:52,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:52,434 INFO L93 Difference]: Finished difference Result 3693 states and 4145 transitions. [2024-11-24 00:50:52,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:52,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2024-11-24 00:50:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:52,442 INFO L225 Difference]: With dead ends: 3693 [2024-11-24 00:50:52,442 INFO L226 Difference]: Without dead ends: 1848 [2024-11-24 00:50:52,444 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 [2024-11-24 00:50:52,445 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 151 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:52,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 40 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:52,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2024-11-24 00:50:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1847. [2024-11-24 00:50:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1846 states have (on average 1.1094257854821234) internal successors, (2048), 1846 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2048 transitions. [2024-11-24 00:50:52,498 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2048 transitions. Word has length 180 [2024-11-24 00:50:52,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:52,498 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2048 transitions. [2024-11-24 00:50:52,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:52,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2048 transitions. [2024-11-24 00:50:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-24 00:50:52,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:52,504 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:52,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:50:52,505 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:52,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:52,505 INFO L85 PathProgramCache]: Analyzing trace with hash 314010913, now seen corresponding path program 1 times [2024-11-24 00:50:52,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:50:52,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767188961] [2024-11-24 00:50:52,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:52,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:50:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:50:52,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:50:52,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767188961] [2024-11-24 00:50:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767188961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:50:52,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:50:52,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:50:52,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617306996] [2024-11-24 00:50:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:50:52,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:50:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:52,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:50:52,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:50:52,749 INFO L87 Difference]: Start difference. First operand 1847 states and 2048 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:53,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:53,324 INFO L93 Difference]: Finished difference Result 4246 states and 4686 transitions. [2024-11-24 00:50:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:50:53,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2024-11-24 00:50:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:53,326 INFO L225 Difference]: With dead ends: 4246 [2024-11-24 00:50:53,326 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:50:53,330 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 [2024-11-24 00:50:53,330 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 90 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:53,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 29 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:50:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:50:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:50:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:50:53,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2024-11-24 00:50:53,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:53,333 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:50:53,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:50:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:50:53,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:50:53,336 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:50:53,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:50:53,340 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:53,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:50:53,596 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:50:53,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:50:53 BoogieIcfgContainer [2024-11-24 00:50:53,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:50:53,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:50:53,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:50:53,625 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:50:53,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:50:42" (3/4) ... [2024-11-24 00:50:53,628 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:50:53,649 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-24 00:50:53,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 00:50:53,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:50:53,658 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:50:53,848 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:50:53,849 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:50:53,849 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:50:53,851 INFO L158 Benchmark]: Toolchain (without parser) took 14093.74ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.4MB in the beginning and 208.5MB in the end (delta: -116.1MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,851 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:50:53,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.81ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 66.2MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.14ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 61.1MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,853 INFO L158 Benchmark]: Boogie Preprocessor took 91.45ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 56.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:50:53,853 INFO L158 Benchmark]: RCFGBuilder took 1679.66ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.2MB in the beginning and 312.6MB in the end (delta: -256.4MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,854 INFO L158 Benchmark]: TraceAbstraction took 11358.10ms. Allocated memory is still 352.3MB. Free memory was 311.9MB in the beginning and 220.5MB in the end (delta: 91.4MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,855 INFO L158 Benchmark]: Witness Printer took 224.74ms. Allocated memory is still 352.3MB. Free memory was 220.5MB in the beginning and 208.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:50:53,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 615.81ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 66.2MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.14ms. Allocated memory is still 117.4MB. Free memory was 66.2MB in the beginning and 61.1MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.45ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 56.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1679.66ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.2MB in the beginning and 312.6MB in the end (delta: -256.4MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11358.10ms. Allocated memory is still 352.3MB. Free memory was 311.9MB in the beginning and 220.5MB in the end (delta: 91.4MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. * Witness Printer took 224.74ms. Allocated memory is still 352.3MB. Free memory was 220.5MB in the beginning and 208.5MB in the end (delta: 12.0MB). 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 - PositiveResult [Line: 497]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1118 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1118 mSDsluCounter, 1448 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 626 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3492 IncrementalHoareTripleChecker+Invalid, 4118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 626 mSolverCounterUnsat, 1287 mSDtfsCounter, 3492 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1992occurred in iteration=6, InterpolantAutomatonStates: 28, 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, 9 MinimizatonAttempts, 15 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1354 NumberOfCodeBlocks, 1354 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1345 ConstructedInterpolants, 0 QuantifiedInterpolants, 3858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 571/571 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((a17 == 8) && (9 <= a28)) && (a25 == 1)) && (a21 == 1)) && (a28 <= 10)) && (a19 == 1)) || (((((a17 == 8) && (a25 == 1)) && (a21 == 1)) && (a19 == 1)) && (a11 != 1))) || (((a25 == 1) && (a28 <= 10)) && (a11 != 1))) || (a17 < 8)) || ((a28 <= 7) && (a25 <= 0))) || ((a25 == 1) && (a28 <= 7))) || ((a11 != 1) && (a25 <= 0))) || ((((((a17 == 8) && (9 <= a28)) && (a21 == 1)) && (a28 <= 10)) && (a19 == 1)) && (a25 <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-24 00:50:53,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49e407bf-69f8-4e87-84d1-769429f219ca/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 Writing output log to file Ultimate.log Result: TRUE