./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB --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 ea5326ea6a4625baef91f26404c87dc5d5aed789a046625372b5a13e975410bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:38:26,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:38:26,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:38:26,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:38:26,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:38:26,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:38:26,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:38:26,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:38:26,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:38:26,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:38:26,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:38:26,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:38:26,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:38:26,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:38:26,958 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:38:26,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:38:26,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:38:26,958 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:38:26,959 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:38:26,959 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:38:26,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:38:26,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:38:26,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:38:26,960 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:38:26,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:26,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:26,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:26,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:26,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:38:26,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:26,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:26,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:26,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:38:26,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:38:26,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:38:26,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:38:26,964 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:38:26,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:38:26,964 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_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ea5326ea6a4625baef91f26404c87dc5d5aed789a046625372b5a13e975410bc [2024-11-28 04:38:27,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:38:27,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:38:27,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:38:27,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:38:27,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:38:27,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem16_label10.c [2024-11-28 04:38:30,612 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/data/25e75632f/bc06632a0bc04dcbb3a4e927dbf87815/FLAG6c01d8bf5 [2024-11-28 04:38:31,208 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:38:31,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/sv-benchmarks/c/eca-rers2012/Problem16_label10.c [2024-11-28 04:38:31,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/data/25e75632f/bc06632a0bc04dcbb3a4e927dbf87815/FLAG6c01d8bf5 [2024-11-28 04:38:31,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/data/25e75632f/bc06632a0bc04dcbb3a4e927dbf87815 [2024-11-28 04:38:31,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:38:31,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:38:31,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:31,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:38:31,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:38:31,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:31" (1/1) ... [2024-11-28 04:38:31,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b91976e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:31, skipping insertion in model container [2024-11-28 04:38:31,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:31" (1/1) ... [2024-11-28 04:38:31,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:38:31,584 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_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/sv-benchmarks/c/eca-rers2012/Problem16_label10.c[3517,3530] [2024-11-28 04:38:32,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:32,066 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:38:32,084 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_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/sv-benchmarks/c/eca-rers2012/Problem16_label10.c[3517,3530] [2024-11-28 04:38:32,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:32,356 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:38:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32 WrapperNode [2024-11-28 04:38:32,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:32,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:32,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:38:32,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:38:32,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,562 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-28 04:38:32,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:32,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:38:32,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:38:32,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:38:32,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,672 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]. [2024-11-28 04:38:32,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:38:32,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:38:32,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:38:32,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:38:32,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (1/1) ... [2024-11-28 04:38:32,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:32,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:32,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:38:32,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:38:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:38:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:38:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:38:32,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:38:33,035 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:38:33,037 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:38:36,260 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-28 04:38:36,260 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:38:36,299 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:38:36,299 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:38:36,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36 BoogieIcfgContainer [2024-11-28 04:38:36,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:38:36,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:38:36,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:38:36,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:38:36,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:31" (1/3) ... [2024-11-28 04:38:36,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227d0cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:36, skipping insertion in model container [2024-11-28 04:38:36,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:32" (2/3) ... [2024-11-28 04:38:36,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227d0cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:36, skipping insertion in model container [2024-11-28 04:38:36,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (3/3) ... [2024-11-28 04:38:36,316 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label10.c [2024-11-28 04:38:36,335 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:38:36,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label10.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:38:36,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:38:36,450 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;@73487cf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:38:36,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:38:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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) [2024-11-28 04:38:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:38:36,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:36,468 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] [2024-11-28 04:38:36,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:36,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:36,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1317301102, now seen corresponding path program 1 times [2024-11-28 04:38:36,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:36,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067358067] [2024-11-28 04:38:36,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:36,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:36,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:36,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067358067] [2024-11-28 04:38:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067358067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:36,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:36,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:36,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625023475] [2024-11-28 04:38:36,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:36,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:36,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:36,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:36,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:36,962 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-28 04:38:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:39,816 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-11-28 04:38:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:39,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 32 [2024-11-28 04:38:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:39,833 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 04:38:39,833 INFO L226 Difference]: Without dead ends: 662 [2024-11-28 04:38:39,839 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 [2024-11-28 04:38:39,842 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 352 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:39,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 114 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:38:39,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-28 04:38:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-28 04:38:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7004538577912254) internal successors, (1124), 661 states have internal predecessors, (1124), 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) [2024-11-28 04:38:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1124 transitions. [2024-11-28 04:38:39,919 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1124 transitions. Word has length 32 [2024-11-28 04:38:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:39,919 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1124 transitions. [2024-11-28 04:38:39,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-28 04:38:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1124 transitions. [2024-11-28 04:38:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 04:38:39,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:39,923 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:38:39,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:38:39,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:39,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:39,924 INFO L85 PathProgramCache]: Analyzing trace with hash 347856145, now seen corresponding path program 1 times [2024-11-28 04:38:39,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:39,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678589742] [2024-11-28 04:38:39,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:39,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:40,245 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:40,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:40,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678589742] [2024-11-28 04:38:40,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678589742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:40,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:40,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547891141] [2024-11-28 04:38:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:40,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:40,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:40,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:40,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:40,251 INFO L87 Difference]: Start difference. First operand 662 states and 1124 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2024-11-28 04:38:42,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:42,278 INFO L93 Difference]: Finished difference Result 1980 states and 3367 transitions. [2024-11-28 04:38:42,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:42,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2024-11-28 04:38:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:42,286 INFO L225 Difference]: With dead ends: 1980 [2024-11-28 04:38:42,286 INFO L226 Difference]: Without dead ends: 1320 [2024-11-28 04:38:42,288 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 [2024-11-28 04:38:42,290 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 343 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:42,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:38:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-28 04:38:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-28 04:38:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.620166793025019) internal successors, (2137), 1319 states have internal predecessors, (2137), 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) [2024-11-28 04:38:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2137 transitions. [2024-11-28 04:38:42,353 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2137 transitions. Word has length 98 [2024-11-28 04:38:42,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:42,354 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2137 transitions. [2024-11-28 04:38:42,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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) [2024-11-28 04:38:42,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2137 transitions. [2024-11-28 04:38:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:38:42,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:42,358 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:38:42,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:38:42,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:42,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1272081587, now seen corresponding path program 1 times [2024-11-28 04:38:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:42,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015427400] [2024-11-28 04:38:42,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:42,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:42,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015427400] [2024-11-28 04:38:42,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015427400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:42,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:42,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665748754] [2024-11-28 04:38:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:42,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:42,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:42,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:42,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:42,674 INFO L87 Difference]: Start difference. First operand 1320 states and 2137 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2024-11-28 04:38:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:44,779 INFO L93 Difference]: Finished difference Result 3296 states and 5285 transitions. [2024-11-28 04:38:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2024-11-28 04:38:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:44,791 INFO L225 Difference]: With dead ends: 3296 [2024-11-28 04:38:44,791 INFO L226 Difference]: Without dead ends: 1978 [2024-11-28 04:38:44,794 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 [2024-11-28 04:38:44,795 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 381 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:44,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:38:44,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-28 04:38:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-28 04:38:44,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3323216995447649) internal successors, (2634), 1977 states have internal predecessors, (2634), 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) [2024-11-28 04:38:44,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2634 transitions. [2024-11-28 04:38:44,959 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2634 transitions. Word has length 99 [2024-11-28 04:38:44,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:44,959 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2634 transitions. [2024-11-28 04:38:44,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2024-11-28 04:38:44,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2634 transitions. [2024-11-28 04:38:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 04:38:44,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:44,966 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:44,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:38:44,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:44,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:44,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1109275341, now seen corresponding path program 1 times [2024-11-28 04:38:44,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:44,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285844263] [2024-11-28 04:38:44,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:45,459 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:45,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:45,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285844263] [2024-11-28 04:38:45,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285844263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:45,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:45,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:45,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248260569] [2024-11-28 04:38:45,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:45,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:45,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:45,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:45,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:45,464 INFO L87 Difference]: Start difference. First operand 1978 states and 2634 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2024-11-28 04:38:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:47,670 INFO L93 Difference]: Finished difference Result 5928 states and 7897 transitions. [2024-11-28 04:38:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:47,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 191 [2024-11-28 04:38:47,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:47,686 INFO L225 Difference]: With dead ends: 5928 [2024-11-28 04:38:47,687 INFO L226 Difference]: Without dead ends: 3952 [2024-11-28 04:38:47,690 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 [2024-11-28 04:38:47,692 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 181 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:47,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 259 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:38:47,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-28 04:38:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-28 04:38:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.216400911161731) internal successors, (4806), 3951 states have internal predecessors, (4806), 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) [2024-11-28 04:38:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4806 transitions. [2024-11-28 04:38:47,800 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4806 transitions. Word has length 191 [2024-11-28 04:38:47,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:47,802 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4806 transitions. [2024-11-28 04:38:47,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2024-11-28 04:38:47,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4806 transitions. [2024-11-28 04:38:47,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-28 04:38:47,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:47,810 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:47,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:38:47,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:47,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:47,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1594600074, now seen corresponding path program 1 times [2024-11-28 04:38:47,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512980036] [2024-11-28 04:38:47,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:48,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:48,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512980036] [2024-11-28 04:38:48,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512980036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:48,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:48,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:38:48,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544754476] [2024-11-28 04:38:48,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:48,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:38:48,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:48,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:38:48,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:38:48,891 INFO L87 Difference]: Start difference. First operand 3952 states and 4806 transitions. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-11-28 04:38:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:50,991 INFO L93 Difference]: Finished difference Result 8231 states and 9951 transitions. [2024-11-28 04:38:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:38:50,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 3 states have internal predecessors, (277), 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 277 [2024-11-28 04:38:50,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:51,009 INFO L225 Difference]: With dead ends: 8231 [2024-11-28 04:38:51,010 INFO L226 Difference]: Without dead ends: 4281 [2024-11-28 04:38:51,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:51,017 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:51,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:38:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2024-11-28 04:38:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4281. [2024-11-28 04:38:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4280 states have (on average 1.2011682242990653) internal successors, (5141), 4280 states have internal predecessors, (5141), 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) [2024-11-28 04:38:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 5141 transitions. [2024-11-28 04:38:51,178 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 5141 transitions. Word has length 277 [2024-11-28 04:38:51,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:51,180 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 5141 transitions. [2024-11-28 04:38:51,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 3 states have internal predecessors, (277), 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) [2024-11-28 04:38:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 5141 transitions. [2024-11-28 04:38:51,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 04:38:51,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:51,188 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:38:51,188 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1661708313, now seen corresponding path program 1 times [2024-11-28 04:38:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634061915] [2024-11-28 04:38:51,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:52,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:52,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634061915] [2024-11-28 04:38:52,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634061915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:52,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:38:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642776865] [2024-11-28 04:38:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:52,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:38:52,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:52,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:38:52,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:52,356 INFO L87 Difference]: Start difference. First operand 4281 states and 5141 transitions. Second operand has 7 states, 7 states have (on average 52.0) internal successors, (364), 6 states have internal predecessors, (364), 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) [2024-11-28 04:38:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:55,718 INFO L93 Difference]: Finished difference Result 8090 states and 9792 transitions. [2024-11-28 04:38:55,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:55,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 6 states have internal predecessors, (364), 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 364 [2024-11-28 04:38:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:55,730 INFO L225 Difference]: With dead ends: 8090 [2024-11-28 04:38:55,730 INFO L226 Difference]: Without dead ends: 3952 [2024-11-28 04:38:55,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:38:55,735 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 288 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:55,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 302 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:38:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-28 04:38:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-28 04:38:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.0802328524424196) internal successors, (4268), 3951 states have internal predecessors, (4268), 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) [2024-11-28 04:38:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4268 transitions. [2024-11-28 04:38:55,814 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4268 transitions. Word has length 364 [2024-11-28 04:38:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:55,814 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4268 transitions. [2024-11-28 04:38:55,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.0) internal successors, (364), 6 states have internal predecessors, (364), 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) [2024-11-28 04:38:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4268 transitions. [2024-11-28 04:38:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-28 04:38:55,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:55,820 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:55,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:38:55,821 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:55,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:55,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2131793295, now seen corresponding path program 1 times [2024-11-28 04:38:55,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:55,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994084036] [2024-11-28 04:38:55,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:38:56,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994084036] [2024-11-28 04:38:56,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994084036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:38:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764559729] [2024-11-28 04:38:56,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:56,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:56,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:56,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:38:56,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:38:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:56,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:38:56,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:38:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-28 04:38:57,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:38:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764559729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:57,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:38:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-28 04:38:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968049461] [2024-11-28 04:38:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:57,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:57,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:57,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:57,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:57,473 INFO L87 Difference]: Start difference. First operand 3952 states and 4268 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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) [2024-11-28 04:38:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:38:58,666 INFO L93 Difference]: Finished difference Result 4941 states and 5287 transitions. [2024-11-28 04:38:58,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:58,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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 371 [2024-11-28 04:38:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:38:58,679 INFO L225 Difference]: With dead ends: 4941 [2024-11-28 04:38:58,680 INFO L226 Difference]: Without dead ends: 4939 [2024-11-28 04:38:58,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:58,682 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:38:58,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 83 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:38:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2024-11-28 04:38:58,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4281. [2024-11-28 04:38:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4280 states have (on average 1.0771028037383177) internal successors, (4610), 4280 states have internal predecessors, (4610), 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) [2024-11-28 04:38:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 4610 transitions. [2024-11-28 04:38:58,783 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 4610 transitions. Word has length 371 [2024-11-28 04:38:58,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:38:58,784 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 4610 transitions. [2024-11-28 04:38:58,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 2 states have internal predecessors, (248), 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) [2024-11-28 04:38:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 4610 transitions. [2024-11-28 04:38:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-11-28 04:38:58,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:38:58,801 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:58,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:38:59,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:38:59,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:38:59,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:59,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1021154541, now seen corresponding path program 1 times [2024-11-28 04:38:59,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:59,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657037414] [2024-11-28 04:38:59,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:59,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 537 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 04:39:00,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:00,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657037414] [2024-11-28 04:39:00,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657037414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:00,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:00,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170680818] [2024-11-28 04:39:00,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:00,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:00,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:00,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:00,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:00,349 INFO L87 Difference]: Start difference. First operand 4281 states and 4610 transitions. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 3 states have internal predecessors, (475), 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) [2024-11-28 04:39:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:02,993 INFO L93 Difference]: Finished difference Result 12179 states and 13189 transitions. [2024-11-28 04:39:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:39:02,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 3 states have internal predecessors, (475), 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 570 [2024-11-28 04:39:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:03,015 INFO L225 Difference]: With dead ends: 12179 [2024-11-28 04:39:03,015 INFO L226 Difference]: Without dead ends: 8229 [2024-11-28 04:39:03,019 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 [2024-11-28 04:39:03,020 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 307 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:03,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 93 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:39:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2024-11-28 04:39:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 7900. [2024-11-28 04:39:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.0724142296493226) internal successors, (8471), 7899 states have internal predecessors, (8471), 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) [2024-11-28 04:39:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8471 transitions. [2024-11-28 04:39:03,204 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 8471 transitions. Word has length 570 [2024-11-28 04:39:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:03,206 INFO L471 AbstractCegarLoop]: Abstraction has 7900 states and 8471 transitions. [2024-11-28 04:39:03,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 3 states have internal predecessors, (475), 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) [2024-11-28 04:39:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 8471 transitions. [2024-11-28 04:39:03,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2024-11-28 04:39:03,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:03,232 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:03,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:39:03,232 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:03,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash 586934931, now seen corresponding path program 1 times [2024-11-28 04:39:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:03,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255867964] [2024-11-28 04:39:03,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:03,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 826 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-28 04:39:04,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:04,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255867964] [2024-11-28 04:39:04,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255867964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:04,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:04,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:04,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474432807] [2024-11-28 04:39:04,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:04,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:04,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:04,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:04,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:04,179 INFO L87 Difference]: Start difference. First operand 7900 states and 8471 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2024-11-28 04:39:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:05,388 INFO L93 Difference]: Finished difference Result 18430 states and 19933 transitions. [2024-11-28 04:39:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:05,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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 674 [2024-11-28 04:39:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:05,412 INFO L225 Difference]: With dead ends: 18430 [2024-11-28 04:39:05,412 INFO L226 Difference]: Without dead ends: 11190 [2024-11-28 04:39:05,418 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 [2024-11-28 04:39:05,418 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:05,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:39:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2024-11-28 04:39:05,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 11190. [2024-11-28 04:39:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 1.0761462150326213) internal successors, (12041), 11189 states have internal predecessors, (12041), 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) [2024-11-28 04:39:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 12041 transitions. [2024-11-28 04:39:05,621 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 12041 transitions. Word has length 674 [2024-11-28 04:39:05,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:05,622 INFO L471 AbstractCegarLoop]: Abstraction has 11190 states and 12041 transitions. [2024-11-28 04:39:05,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2024-11-28 04:39:05,623 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 12041 transitions. [2024-11-28 04:39:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-11-28 04:39:05,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:05,638 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1] [2024-11-28 04:39:05,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:39:05,638 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:05,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:05,639 INFO L85 PathProgramCache]: Analyzing trace with hash -28257972, now seen corresponding path program 1 times [2024-11-28 04:39:05,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:05,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88029517] [2024-11-28 04:39:05,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:05,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1508 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-28 04:39:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:07,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88029517] [2024-11-28 04:39:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88029517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:07,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:07,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576423174] [2024-11-28 04:39:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:07,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:39:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:07,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:39:07,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:39:07,128 INFO L87 Difference]: Start difference. First operand 11190 states and 12041 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-28 04:39:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:08,626 INFO L93 Difference]: Finished difference Result 21720 states and 23413 transitions. [2024-11-28 04:39:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:08,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 3 states have internal predecessors, (524), 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 793 [2024-11-28 04:39:08,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:08,655 INFO L225 Difference]: With dead ends: 21720 [2024-11-28 04:39:08,656 INFO L226 Difference]: Without dead ends: 11190 [2024-11-28 04:39:08,664 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 [2024-11-28 04:39:08,665 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 173 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:08,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:39:08,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2024-11-28 04:39:08,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 11190. [2024-11-28 04:39:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 1.0758780945571544) internal successors, (12038), 11189 states have internal predecessors, (12038), 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) [2024-11-28 04:39:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 12038 transitions. [2024-11-28 04:39:08,841 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 12038 transitions. Word has length 793 [2024-11-28 04:39:08,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:08,842 INFO L471 AbstractCegarLoop]: Abstraction has 11190 states and 12038 transitions. [2024-11-28 04:39:08,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-28 04:39:08,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 12038 transitions. [2024-11-28 04:39:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2024-11-28 04:39:08,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:08,858 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:39:08,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:39:08,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:08,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1628567870, now seen corresponding path program 1 times [2024-11-28 04:39:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689354689] [2024-11-28 04:39:08,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:09,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2024-11-28 04:39:09,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:09,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689354689] [2024-11-28 04:39:09,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689354689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:09,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:09,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:09,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754194297] [2024-11-28 04:39:09,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:09,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:09,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:09,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:09,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:09,720 INFO L87 Difference]: Start difference. First operand 11190 states and 12038 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2024-11-28 04:39:10,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:10,990 INFO L93 Difference]: Finished difference Result 24352 states and 26363 transitions. [2024-11-28 04:39:10,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:10,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 854 [2024-11-28 04:39:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:11,017 INFO L225 Difference]: With dead ends: 24352 [2024-11-28 04:39:11,017 INFO L226 Difference]: Without dead ends: 13822 [2024-11-28 04:39:11,026 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 [2024-11-28 04:39:11,026 INFO L435 NwaCegarLoop]: 431 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:11,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 437 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:39:11,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-28 04:39:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13164. [2024-11-28 04:39:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0656385322494872) internal successors, (14027), 13163 states have internal predecessors, (14027), 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) [2024-11-28 04:39:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 14027 transitions. [2024-11-28 04:39:11,203 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 14027 transitions. Word has length 854 [2024-11-28 04:39:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:11,205 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 14027 transitions. [2024-11-28 04:39:11,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2024-11-28 04:39:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 14027 transitions. [2024-11-28 04:39:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2024-11-28 04:39:11,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:11,220 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:39:11,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:39:11,220 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:11,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:11,221 INFO L85 PathProgramCache]: Analyzing trace with hash 178973415, now seen corresponding path program 1 times [2024-11-28 04:39:11,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:11,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182806435] [2024-11-28 04:39:11,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:11,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-28 04:39:11,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:11,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182806435] [2024-11-28 04:39:11,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182806435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:11,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:11,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:11,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017593092] [2024-11-28 04:39:11,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:11,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:11,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:11,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:11,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:11,978 INFO L87 Difference]: Start difference. First operand 13164 states and 14027 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2024-11-28 04:39:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:13,408 INFO L93 Difference]: Finished difference Result 30603 states and 32692 transitions. [2024-11-28 04:39:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:13,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 855 [2024-11-28 04:39:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:13,449 INFO L225 Difference]: With dead ends: 30603 [2024-11-28 04:39:13,449 INFO L226 Difference]: Without dead ends: 16783 [2024-11-28 04:39:13,461 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 [2024-11-28 04:39:13,462 INFO L435 NwaCegarLoop]: 423 mSDtfsCounter, 272 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:13,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 428 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:39:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16783 states. [2024-11-28 04:39:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 16454. [2024-11-28 04:39:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0502643894730443) internal successors, (17280), 16453 states have internal predecessors, (17280), 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) [2024-11-28 04:39:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17280 transitions. [2024-11-28 04:39:13,808 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 17280 transitions. Word has length 855 [2024-11-28 04:39:13,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:13,810 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 17280 transitions. [2024-11-28 04:39:13,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2024-11-28 04:39:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 17280 transitions. [2024-11-28 04:39:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2024-11-28 04:39:13,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:13,840 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:39:13,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:39:13,840 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:13,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:13,841 INFO L85 PathProgramCache]: Analyzing trace with hash -340668471, now seen corresponding path program 1 times [2024-11-28 04:39:13,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:13,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228806360] [2024-11-28 04:39:13,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:13,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1622 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-28 04:39:15,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:15,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228806360] [2024-11-28 04:39:15,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228806360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:15,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:15,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:15,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840268472] [2024-11-28 04:39:15,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:15,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:15,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:15,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:15,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:15,339 INFO L87 Difference]: Start difference. First operand 16454 states and 17280 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2024-11-28 04:39:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:16,537 INFO L93 Difference]: Finished difference Result 32577 states and 34227 transitions. [2024-11-28 04:39:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:16,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 867 [2024-11-28 04:39:16,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:16,571 INFO L225 Difference]: With dead ends: 32577 [2024-11-28 04:39:16,572 INFO L226 Difference]: Without dead ends: 16454 [2024-11-28 04:39:16,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:16,589 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 261 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:16,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 371 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:39:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16454 states. [2024-11-28 04:39:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16454 to 15467. [2024-11-28 04:39:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.0393766972714342) internal successors, (16075), 15466 states have internal predecessors, (16075), 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) [2024-11-28 04:39:16,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 16075 transitions. [2024-11-28 04:39:16,821 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 16075 transitions. Word has length 867 [2024-11-28 04:39:16,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:16,822 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 16075 transitions. [2024-11-28 04:39:16,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2024-11-28 04:39:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 16075 transitions. [2024-11-28 04:39:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2024-11-28 04:39:16,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:16,837 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:39:16,837 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:16,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash -823614638, now seen corresponding path program 1 times [2024-11-28 04:39:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838492810] [2024-11-28 04:39:16,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2024-11-28 04:39:17,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838492810] [2024-11-28 04:39:17,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838492810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:17,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:17,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:17,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907705875] [2024-11-28 04:39:17,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:17,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:17,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:17,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:17,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:17,716 INFO L87 Difference]: Start difference. First operand 15467 states and 16075 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-28 04:39:18,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:18,790 INFO L93 Difference]: Finished difference Result 30274 states and 31486 transitions. [2024-11-28 04:39:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 881 [2024-11-28 04:39:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:18,818 INFO L225 Difference]: With dead ends: 30274 [2024-11-28 04:39:18,818 INFO L226 Difference]: Without dead ends: 15467 [2024-11-28 04:39:18,828 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 [2024-11-28 04:39:18,829 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 285 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:18,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 377 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:39:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-28 04:39:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 15138. [2024-11-28 04:39:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15138 states, 15137 states have (on average 1.0350796062627998) internal successors, (15668), 15137 states have internal predecessors, (15668), 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) [2024-11-28 04:39:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15138 states to 15138 states and 15668 transitions. [2024-11-28 04:39:19,031 INFO L78 Accepts]: Start accepts. Automaton has 15138 states and 15668 transitions. Word has length 881 [2024-11-28 04:39:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:19,032 INFO L471 AbstractCegarLoop]: Abstraction has 15138 states and 15668 transitions. [2024-11-28 04:39:19,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-28 04:39:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 15138 states and 15668 transitions. [2024-11-28 04:39:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2024-11-28 04:39:19,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:19,056 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 3, 3, 3, 3, 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] [2024-11-28 04:39:19,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:39:19,056 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:19,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1613333936, now seen corresponding path program 1 times [2024-11-28 04:39:19,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:19,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017248560] [2024-11-28 04:39:19,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:19,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 712 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked. [2024-11-28 04:39:20,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:20,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017248560] [2024-11-28 04:39:20,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017248560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:20,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:20,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:20,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032379223] [2024-11-28 04:39:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:20,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:20,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:20,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:20,079 INFO L87 Difference]: Start difference. First operand 15138 states and 15668 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2024-11-28 04:39:21,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:21,391 INFO L93 Difference]: Finished difference Result 32906 states and 34105 transitions. [2024-11-28 04:39:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:21,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 1208 [2024-11-28 04:39:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:21,408 INFO L225 Difference]: With dead ends: 32906 [2024-11-28 04:39:21,409 INFO L226 Difference]: Without dead ends: 16125 [2024-11-28 04:39:21,419 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 [2024-11-28 04:39:21,420 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 273 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:21,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 413 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:39:21,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-28 04:39:21,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796. [2024-11-28 04:39:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.0298828743273187) internal successors, (16267), 15795 states have internal predecessors, (16267), 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) [2024-11-28 04:39:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16267 transitions. [2024-11-28 04:39:21,725 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16267 transitions. Word has length 1208 [2024-11-28 04:39:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:21,728 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16267 transitions. [2024-11-28 04:39:21,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2024-11-28 04:39:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16267 transitions. [2024-11-28 04:39:21,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1389 [2024-11-28 04:39:21,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:21,784 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:39:21,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:39:21,784 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:21,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:21,785 INFO L85 PathProgramCache]: Analyzing trace with hash 635226185, now seen corresponding path program 1 times [2024-11-28 04:39:21,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:21,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706725180] [2024-11-28 04:39:21,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4450 backedges. 2941 proven. 0 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2024-11-28 04:39:23,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:23,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706725180] [2024-11-28 04:39:23,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706725180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:23,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:23,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308496442] [2024-11-28 04:39:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:23,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:23,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:23,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:23,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:23,216 INFO L87 Difference]: Start difference. First operand 15796 states and 16267 transitions. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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) [2024-11-28 04:39:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:24,365 INFO L93 Difference]: Finished difference Result 32248 states and 33227 transitions. [2024-11-28 04:39:24,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 1388 [2024-11-28 04:39:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:24,385 INFO L225 Difference]: With dead ends: 32248 [2024-11-28 04:39:24,385 INFO L226 Difference]: Without dead ends: 17112 [2024-11-28 04:39:24,396 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 [2024-11-28 04:39:24,397 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 193 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:24,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 418 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:39:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-28 04:39:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 17112. [2024-11-28 04:39:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17111 states have (on average 1.0274092688913565) internal successors, (17580), 17111 states have internal predecessors, (17580), 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) [2024-11-28 04:39:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 17580 transitions. [2024-11-28 04:39:24,610 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 17580 transitions. Word has length 1388 [2024-11-28 04:39:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:24,611 INFO L471 AbstractCegarLoop]: Abstraction has 17112 states and 17580 transitions. [2024-11-28 04:39:24,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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) [2024-11-28 04:39:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 17580 transitions. [2024-11-28 04:39:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1418 [2024-11-28 04:39:24,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:24,636 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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, 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, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:39:24,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:39:24,636 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:24,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1514425322, now seen corresponding path program 1 times [2024-11-28 04:39:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:24,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635321412] [2024-11-28 04:39:24,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4607 backedges. 3084 proven. 0 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2024-11-28 04:39:25,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:25,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635321412] [2024-11-28 04:39:25,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635321412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:25,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:39:25,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:39:25,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142864241] [2024-11-28 04:39:25,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:25,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:25,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:25,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:25,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:39:25,655 INFO L87 Difference]: Start difference. First operand 17112 states and 17580 transitions. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2024-11-28 04:39:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:26,770 INFO L93 Difference]: Finished difference Result 33893 states and 34826 transitions. [2024-11-28 04:39:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:26,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 1417 [2024-11-28 04:39:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:26,784 INFO L225 Difference]: With dead ends: 33893 [2024-11-28 04:39:26,785 INFO L226 Difference]: Without dead ends: 17112 [2024-11-28 04:39:26,793 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 [2024-11-28 04:39:26,794 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:26,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 421 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:39:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-28 04:39:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 16783. [2024-11-28 04:39:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16783 states, 16782 states have (on average 1.0228220712668334) internal successors, (17165), 16782 states have internal predecessors, (17165), 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) [2024-11-28 04:39:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16783 states to 16783 states and 17165 transitions. [2024-11-28 04:39:26,966 INFO L78 Accepts]: Start accepts. Automaton has 16783 states and 17165 transitions. Word has length 1417 [2024-11-28 04:39:26,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:26,967 INFO L471 AbstractCegarLoop]: Abstraction has 16783 states and 17165 transitions. [2024-11-28 04:39:26,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2024-11-28 04:39:26,967 INFO L276 IsEmpty]: Start isEmpty. Operand 16783 states and 17165 transitions. [2024-11-28 04:39:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1679 [2024-11-28 04:39:26,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:39:26,989 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-28 04:39:26,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:39:26,989 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:39:26,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:39:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash 981519082, now seen corresponding path program 1 times [2024-11-28 04:39:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:39:26,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716233492] [2024-11-28 04:39:26,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:26,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:39:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4653 backedges. 1863 proven. 32 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2024-11-28 04:39:28,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:39:28,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716233492] [2024-11-28 04:39:28,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716233492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:39:28,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313035998] [2024-11-28 04:39:28,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:39:28,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:39:28,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:39:28,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:39:28,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:39:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:39:29,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:39:29,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:39:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4653 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 4414 trivial. 0 not checked. [2024-11-28 04:39:29,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:39:29,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313035998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:39:29,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:39:29,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 04:39:29,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463678498] [2024-11-28 04:39:29,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:39:29,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:39:29,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:39:29,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:39:29,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:29,331 INFO L87 Difference]: Start difference. First operand 16783 states and 17165 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-28 04:39:30,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:39:30,458 INFO L93 Difference]: Finished difference Result 32904 states and 33665 transitions. [2024-11-28 04:39:30,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:39:30,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 1678 [2024-11-28 04:39:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:39:30,461 INFO L225 Difference]: With dead ends: 32904 [2024-11-28 04:39:30,461 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:39:30,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1682 GetRequests, 1678 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:39:30,471 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 316 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:39:30,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 50 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:39:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:39:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:39:30,472 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) [2024-11-28 04:39:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:39:30,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1678 [2024-11-28 04:39:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:39:30,473 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:39:30,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-28 04:39:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:39:30,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:39:30,477 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:39:30,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:39:30,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:39:30,681 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:39:30,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:39:32,576 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:39:32,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:39:32 BoogieIcfgContainer [2024-11-28 04:39:32,606 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:39:32,607 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:39:32,607 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:39:32,608 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:39:32,608 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (3/4) ... [2024-11-28 04:39:32,611 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:39:32,638 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 04:39:32,640 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:39:32,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:39:32,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:39:32,896 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:39:32,896 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:39:32,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:39:32,897 INFO L158 Benchmark]: Toolchain (without parser) took 61629.25ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 114.5MB in the beginning and 745.2MB in the end (delta: -630.7MB). Peak memory consumption was 705.9MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,898 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:39:32,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1088.74ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 104.1MB in the end (delta: 10.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.40ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 81.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,899 INFO L158 Benchmark]: Boogie Preprocessor took 303.43ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 81.2MB in the beginning and 378.3MB in the end (delta: -297.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,899 INFO L158 Benchmark]: RCFGBuilder took 3430.86ms. Allocated memory is still 427.8MB. Free memory was 378.3MB in the beginning and 260.1MB in the end (delta: 118.2MB). Peak memory consumption was 151.0MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,900 INFO L158 Benchmark]: TraceAbstraction took 56300.14ms. Allocated memory was 427.8MB in the beginning and 1.5GB in the end (delta: 1.0GB). Free memory was 260.1MB in the beginning and 770.1MB in the end (delta: -510.0MB). Peak memory consumption was 540.4MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,900 INFO L158 Benchmark]: Witness Printer took 289.37ms. Allocated memory is still 1.5GB. Free memory was 770.1MB in the beginning and 745.2MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:39:32,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1088.74ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 104.1MB in the end (delta: 10.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 203.40ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 81.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 303.43ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 81.2MB in the beginning and 378.3MB in the end (delta: -297.1MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * RCFGBuilder took 3430.86ms. Allocated memory is still 427.8MB. Free memory was 378.3MB in the beginning and 260.1MB in the end (delta: 118.2MB). Peak memory consumption was 151.0MB. Max. memory is 16.1GB. * TraceAbstraction took 56300.14ms. Allocated memory was 427.8MB in the beginning and 1.5GB in the end (delta: 1.0GB). Free memory was 260.1MB in the beginning and 770.1MB in the end (delta: -510.0MB). Peak memory consumption was 540.4MB. Max. memory is 16.1GB. * Witness Printer took 289.37ms. Allocated memory is still 1.5GB. Free memory was 770.1MB in the beginning and 745.2MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. 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: 113]: 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, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.3s, OverallIterations: 18, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4496 SdHoareTripleChecker+Valid, 28.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4496 mSDsluCounter, 4476 SdHoareTripleChecker+Invalid, 24.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 2464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17897 IncrementalHoareTripleChecker+Invalid, 20361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2464 mSolverCounterUnsat, 4287 mSDtfsCounter, 17897 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2106 GetRequests, 2075 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17112occurred in iteration=16, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 18 MinimizatonAttempts, 3948 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 14666 NumberOfCodeBlocks, 14666 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 14646 ConstructedInterpolants, 0 QuantifiedInterpolants, 29073 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2381 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 20 InterpolantComputations, 18 PerfectInterpolantSequences, 31410/31478 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: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a15 <= 3) && (5 != a12)) && (a12 <= 6)) && (a16 <= 11)) || (((a12 == 9) && (a16 == 8)) && (a15 <= 3))) || (((a16 == 8) && (a15 == 4)) && (7 == a12))) || (((a16 == 8) && (a15 <= 3)) && (((long long) 87 + a18) <= 0))) || (((a12 == 9) && (a16 == 8)) && (a15 == 4))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (5 != a12)) && (a12 <= 6))) || (((a12 == 9) && (a15 <= 3)) && (((long long) 87 + a18) <= 0))) || (((a16 == 9) && (a15 == 4)) && (a12 == 8))) || (((5 == a12) && (a15 == 3)) && (11 <= a16))) || (((a16 == 8) && (a15 == 4)) && (a12 == 8))) || ((a15 <= 3) && (a12 == 8))) || (((a12 == 9) && (a16 == 9)) && (a15 == 4))) || (((a16 == 9) && (a15 == 4)) && (7 == a12))) || (((a16 == 9) && (5 == a12)) && (a15 == 3))) || (((a15 <= 3) && (11 <= a16)) && (7 == a12))) || ((((a16 == 9) && (a15 <= 3)) && (5 != a12)) && (a12 <= 7))) || (((0 <= ((long long) 87 + a18)) && (a12 <= 6)) && (a15 == 3))) || (((a16 == 8) && (a15 <= 3)) && (a12 <= 6))) || ((((0 <= ((long long) 87 + a18)) && (a16 == 9)) && (a15 <= 3)) && (5 != a12))) || (((a15 == 4) && (a12 <= 6)) && (a16 <= 11))) || (((a12 == 9) && (a15 <= 3)) && (11 <= a16))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:39:32,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d8f10d-60d1-410a-b7f0-f9eb3e50bc30/bin/uautomizer-verify-aQ6SnzHsRB/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