./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label28.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_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/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_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/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_44d5becf-1383-437e-b4da-d02805edea58/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 e1b64adb5298d170b0a0065804aa34285565fef303a8d1c9e978e6f35837be1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:23:48,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:23:48,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:23:48,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:23:48,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:23:48,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:23:48,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:23:48,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:23:48,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:23:48,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:23:48,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:23:48,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:23:48,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:23:48,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:23:48,412 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:23:48,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:23:48,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:23:48,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:23:48,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:23:48,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:23:48,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:23:48,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:23:48,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:23:48,417 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:48,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:48,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:48,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:23:48,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:23:48,418 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_44d5becf-1383-437e-b4da-d02805edea58/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 -> e1b64adb5298d170b0a0065804aa34285565fef303a8d1c9e978e6f35837be1e [2024-11-27 20:23:48,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:23:48,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:23:48,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:23:48,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:23:48,775 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:23:48,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem15_label28.c [2024-11-27 20:23:51,752 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/data/a359e991e/87cde8d6dc2447a9b2fd346e6275e5af/FLAGbd24752bd [2024-11-27 20:23:52,215 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:23:52,216 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/sv-benchmarks/c/eca-rers2012/Problem15_label28.c [2024-11-27 20:23:52,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/data/a359e991e/87cde8d6dc2447a9b2fd346e6275e5af/FLAGbd24752bd [2024-11-27 20:23:52,270 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/data/a359e991e/87cde8d6dc2447a9b2fd346e6275e5af [2024-11-27 20:23:52,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:23:52,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:23:52,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:52,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:23:52,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:23:52,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:52" (1/1) ... [2024-11-27 20:23:52,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d927fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:52, skipping insertion in model container [2024-11-27 20:23:52,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:52" (1/1) ... [2024-11-27 20:23:52,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:23:52,577 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_44d5becf-1383-437e-b4da-d02805edea58/sv-benchmarks/c/eca-rers2012/Problem15_label28.c[4049,4062] [2024-11-27 20:23:53,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:53,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:23:53,127 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_44d5becf-1383-437e-b4da-d02805edea58/sv-benchmarks/c/eca-rers2012/Problem15_label28.c[4049,4062] [2024-11-27 20:23:53,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:53,411 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:23:53,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53 WrapperNode [2024-11-27 20:23:53,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:53,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:53,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:23:53,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:23:53,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,671 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-27 20:23:53,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:53,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:23:53,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:23:53,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:23:53,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,900 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]. [2024-11-27 20:23:53,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:53,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:23:54,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:23:54,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:23:54,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:23:54,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (1/1) ... [2024-11-27 20:23:54,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:54,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:54,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:23:54,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:23:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:23:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:23:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:23:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:23:54,247 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:23:54,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:23:57,699 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-27 20:23:57,700 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:23:57,737 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:23:57,740 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:23:57,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:57 BoogieIcfgContainer [2024-11-27 20:23:57,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:23:57,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:23:57,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:23:57,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:23:57,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:23:52" (1/3) ... [2024-11-27 20:23:57,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a435284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:57, skipping insertion in model container [2024-11-27 20:23:57,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:53" (2/3) ... [2024-11-27 20:23:57,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a435284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:57, skipping insertion in model container [2024-11-27 20:23:57,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:57" (3/3) ... [2024-11-27 20:23:57,761 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem15_label28.c [2024-11-27 20:23:57,779 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:23:57,782 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label28.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:23:57,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:23:57,901 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;@710a47e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:23:57,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:23:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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) [2024-11-27 20:23:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:23:57,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:57,920 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] [2024-11-27 20:23:57,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:23:57,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1317301102, now seen corresponding path program 1 times [2024-11-27 20:23:57,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:57,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132896483] [2024-11-27 20:23:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:58,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:58,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132896483] [2024-11-27 20:23:58,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132896483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:58,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:58,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937094798] [2024-11-27 20:23:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:58,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:58,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:58,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:58,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:58,448 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 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) [2024-11-27 20:24:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:01,061 INFO L93 Difference]: Finished difference Result 1155 states and 2106 transitions. [2024-11-27 20:24:01,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:01,063 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 [2024-11-27 20:24:01,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:01,074 INFO L225 Difference]: With dead ends: 1155 [2024-11-27 20:24:01,075 INFO L226 Difference]: Without dead ends: 667 [2024-11-27 20:24:01,079 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 [2024-11-27 20:24:01,082 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 312 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:01,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 371 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:24:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-27 20:24:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 665. [2024-11-27 20:24:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.4789156626506024) internal successors, (982), 664 states have internal predecessors, (982), 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) [2024-11-27 20:24:01,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 982 transitions. [2024-11-27 20:24:01,170 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 982 transitions. Word has length 32 [2024-11-27 20:24:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:01,171 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 982 transitions. [2024-11-27 20:24:01,171 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) [2024-11-27 20:24:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 982 transitions. [2024-11-27 20:24:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 20:24:01,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:01,177 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] [2024-11-27 20:24:01,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:24:01,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:01,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:01,179 INFO L85 PathProgramCache]: Analyzing trace with hash 251864749, now seen corresponding path program 1 times [2024-11-27 20:24:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:01,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036737332] [2024-11-27 20:24:01,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:01,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:01,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036737332] [2024-11-27 20:24:01,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036737332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:01,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:01,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:01,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901190385] [2024-11-27 20:24:01,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:01,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:01,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:01,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:01,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:01,584 INFO L87 Difference]: Start difference. First operand 665 states and 982 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2024-11-27 20:24:04,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:04,113 INFO L93 Difference]: Finished difference Result 1955 states and 2894 transitions. [2024-11-27 20:24:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:04,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2024-11-27 20:24:04,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:04,121 INFO L225 Difference]: With dead ends: 1955 [2024-11-27 20:24:04,121 INFO L226 Difference]: Without dead ends: 1292 [2024-11-27 20:24:04,126 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 [2024-11-27 20:24:04,127 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:04,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 327 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 20:24:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-27 20:24:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1282. [2024-11-27 20:24:04,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 1.3989071038251366) internal successors, (1792), 1281 states have internal predecessors, (1792), 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) [2024-11-27 20:24:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1792 transitions. [2024-11-27 20:24:04,188 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1792 transitions. Word has length 107 [2024-11-27 20:24:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:04,188 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1792 transitions. [2024-11-27 20:24:04,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2024-11-27 20:24:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1792 transitions. [2024-11-27 20:24:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-27 20:24:04,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:04,192 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] [2024-11-27 20:24:04,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:24:04,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:04,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1575980701, now seen corresponding path program 1 times [2024-11-27 20:24:04,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:04,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145994107] [2024-11-27 20:24:04,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:04,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:04,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:04,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145994107] [2024-11-27 20:24:04,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145994107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:04,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:04,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467344168] [2024-11-27 20:24:04,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:04,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:04,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:04,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:04,512 INFO L87 Difference]: Start difference. First operand 1282 states and 1792 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-27 20:24:06,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:06,832 INFO L93 Difference]: Finished difference Result 3764 states and 5263 transitions. [2024-11-27 20:24:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2024-11-27 20:24:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:06,847 INFO L225 Difference]: With dead ends: 3764 [2024-11-27 20:24:06,847 INFO L226 Difference]: Without dead ends: 2484 [2024-11-27 20:24:06,849 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 [2024-11-27 20:24:06,850 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 236 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:06,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 366 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 20:24:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2024-11-27 20:24:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2182. [2024-11-27 20:24:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 1.2815222375057314) internal successors, (2795), 2181 states have internal predecessors, (2795), 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) [2024-11-27 20:24:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2795 transitions. [2024-11-27 20:24:06,919 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2795 transitions. Word has length 111 [2024-11-27 20:24:06,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:06,920 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 2795 transitions. [2024-11-27 20:24:06,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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) [2024-11-27 20:24:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2795 transitions. [2024-11-27 20:24:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-27 20:24:06,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:06,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:06,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:24:06,928 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:06,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:06,928 INFO L85 PathProgramCache]: Analyzing trace with hash -445236617, now seen corresponding path program 1 times [2024-11-27 20:24:06,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:06,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678283467] [2024-11-27 20:24:06,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-27 20:24:07,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:07,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678283467] [2024-11-27 20:24:07,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678283467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:07,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:07,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:07,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684069191] [2024-11-27 20:24:07,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:07,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:07,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:07,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:07,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:07,400 INFO L87 Difference]: Start difference. First operand 2182 states and 2795 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2024-11-27 20:24:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:09,345 INFO L93 Difference]: Finished difference Result 6166 states and 7961 transitions. [2024-11-27 20:24:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:09,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 202 [2024-11-27 20:24:09,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:09,359 INFO L225 Difference]: With dead ends: 6166 [2024-11-27 20:24:09,359 INFO L226 Difference]: Without dead ends: 3986 [2024-11-27 20:24:09,362 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 [2024-11-27 20:24:09,363 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:09,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 339 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:24:09,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2024-11-27 20:24:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3682. [2024-11-27 20:24:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 3681 states have (on average 1.2200488997555012) internal successors, (4491), 3681 states have internal predecessors, (4491), 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) [2024-11-27 20:24:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4491 transitions. [2024-11-27 20:24:09,446 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4491 transitions. Word has length 202 [2024-11-27 20:24:09,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:09,447 INFO L471 AbstractCegarLoop]: Abstraction has 3682 states and 4491 transitions. [2024-11-27 20:24:09,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2024-11-27 20:24:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4491 transitions. [2024-11-27 20:24:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-27 20:24:09,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:09,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:24:09,454 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:09,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1158649091, now seen corresponding path program 1 times [2024-11-27 20:24:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:09,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393308970] [2024-11-27 20:24:09,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 20:24:10,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:10,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393308970] [2024-11-27 20:24:10,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393308970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:10,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:10,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:10,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233003890] [2024-11-27 20:24:10,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:10,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:10,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:10,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:10,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:10,407 INFO L87 Difference]: Start difference. First operand 3682 states and 4491 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2024-11-27 20:24:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:11,949 INFO L93 Difference]: Finished difference Result 7661 states and 9291 transitions. [2024-11-27 20:24:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:11,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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 304 [2024-11-27 20:24:11,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:11,962 INFO L225 Difference]: With dead ends: 7661 [2024-11-27 20:24:11,963 INFO L226 Difference]: Without dead ends: 3981 [2024-11-27 20:24:11,967 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 [2024-11-27 20:24:11,968 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:11,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:24:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2024-11-27 20:24:12,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3981. [2024-11-27 20:24:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3980 states have (on average 1.2050251256281408) internal successors, (4796), 3980 states have internal predecessors, (4796), 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) [2024-11-27 20:24:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 4796 transitions. [2024-11-27 20:24:12,103 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 4796 transitions. Word has length 304 [2024-11-27 20:24:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:12,103 INFO L471 AbstractCegarLoop]: Abstraction has 3981 states and 4796 transitions. [2024-11-27 20:24:12,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 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) [2024-11-27 20:24:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 4796 transitions. [2024-11-27 20:24:12,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-27 20:24:12,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:12,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:12,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:24:12,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:12,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash 579536590, now seen corresponding path program 1 times [2024-11-27 20:24:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794672405] [2024-11-27 20:24:12,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:12,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-27 20:24:12,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:12,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794672405] [2024-11-27 20:24:12,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794672405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:12,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:12,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519592369] [2024-11-27 20:24:12,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:12,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:12,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:12,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:12,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:12,485 INFO L87 Difference]: Start difference. First operand 3981 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-11-27 20:24:14,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:14,346 INFO L93 Difference]: Finished difference Result 8857 states and 10953 transitions. [2024-11-27 20:24:14,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:14,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 319 [2024-11-27 20:24:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:14,359 INFO L225 Difference]: With dead ends: 8857 [2024-11-27 20:24:14,359 INFO L226 Difference]: Without dead ends: 5177 [2024-11-27 20:24:14,363 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 [2024-11-27 20:24:14,364 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 283 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:14,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:24:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2024-11-27 20:24:14,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 3678. [2024-11-27 20:24:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3677 states have (on average 1.2181125917867828) internal successors, (4479), 3677 states have internal predecessors, (4479), 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) [2024-11-27 20:24:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 4479 transitions. [2024-11-27 20:24:14,448 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 4479 transitions. Word has length 319 [2024-11-27 20:24:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:14,449 INFO L471 AbstractCegarLoop]: Abstraction has 3678 states and 4479 transitions. [2024-11-27 20:24:14,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-11-27 20:24:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 4479 transitions. [2024-11-27 20:24:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-27 20:24:14,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:14,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:14,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:24:14,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:14,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:14,457 INFO L85 PathProgramCache]: Analyzing trace with hash -84480945, now seen corresponding path program 1 times [2024-11-27 20:24:14,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:14,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745720040] [2024-11-27 20:24:14,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-27 20:24:15,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:15,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745720040] [2024-11-27 20:24:15,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745720040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:15,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:15,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:15,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335190819] [2024-11-27 20:24:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:15,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:15,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:15,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:15,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:15,006 INFO L87 Difference]: Start difference. First operand 3678 states and 4479 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-27 20:24:16,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:16,853 INFO L93 Difference]: Finished difference Result 9157 states and 11369 transitions. [2024-11-27 20:24:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 378 [2024-11-27 20:24:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:16,862 INFO L225 Difference]: With dead ends: 9157 [2024-11-27 20:24:16,862 INFO L226 Difference]: Without dead ends: 5780 [2024-11-27 20:24:16,865 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 [2024-11-27 20:24:16,866 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 296 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:16,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 637 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:24:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2024-11-27 20:24:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5182. [2024-11-27 20:24:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5181 states have (on average 1.1767998455896544) internal successors, (6097), 5181 states have internal predecessors, (6097), 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) [2024-11-27 20:24:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 6097 transitions. [2024-11-27 20:24:16,966 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 6097 transitions. Word has length 378 [2024-11-27 20:24:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:16,967 INFO L471 AbstractCegarLoop]: Abstraction has 5182 states and 6097 transitions. [2024-11-27 20:24:16,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-27 20:24:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 6097 transitions. [2024-11-27 20:24:16,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-27 20:24:16,974 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:16,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:16,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:24:16,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:16,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1647724765, now seen corresponding path program 1 times [2024-11-27 20:24:16,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:16,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078912635] [2024-11-27 20:24:16,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:16,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:17,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:17,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078912635] [2024-11-27 20:24:17,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078912635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:17,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:17,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:17,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172271895] [2024-11-27 20:24:17,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:17,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:17,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:17,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:17,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:17,526 INFO L87 Difference]: Start difference. First operand 5182 states and 6097 transitions. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2024-11-27 20:24:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:19,360 INFO L93 Difference]: Finished difference Result 11868 states and 14277 transitions. [2024-11-27 20:24:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:19,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 384 [2024-11-27 20:24:19,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:19,384 INFO L225 Difference]: With dead ends: 11868 [2024-11-27 20:24:19,384 INFO L226 Difference]: Without dead ends: 6987 [2024-11-27 20:24:19,388 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 [2024-11-27 20:24:19,389 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 248 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:19,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 603 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:24:19,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6987 states. [2024-11-27 20:24:19,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6987 to 6087. [2024-11-27 20:24:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6087 states, 6086 states have (on average 1.1628327308577062) internal successors, (7077), 6086 states have internal predecessors, (7077), 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) [2024-11-27 20:24:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7077 transitions. [2024-11-27 20:24:19,489 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7077 transitions. Word has length 384 [2024-11-27 20:24:19,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:19,490 INFO L471 AbstractCegarLoop]: Abstraction has 6087 states and 7077 transitions. [2024-11-27 20:24:19,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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) [2024-11-27 20:24:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7077 transitions. [2024-11-27 20:24:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-27 20:24:19,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:19,497 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-27 20:24:19,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:24:19,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:19,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:19,498 INFO L85 PathProgramCache]: Analyzing trace with hash 747271101, now seen corresponding path program 1 times [2024-11-27 20:24:19,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129560575] [2024-11-27 20:24:19,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:19,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-27 20:24:19,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:19,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129560575] [2024-11-27 20:24:19,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129560575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:19,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:19,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:19,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511085132] [2024-11-27 20:24:19,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:19,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:19,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:19,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:19,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:19,913 INFO L87 Difference]: Start difference. First operand 6087 states and 7077 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-27 20:24:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:21,705 INFO L93 Difference]: Finished difference Result 13667 states and 16224 transitions. [2024-11-27 20:24:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 401 [2024-11-27 20:24:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:21,721 INFO L225 Difference]: With dead ends: 13667 [2024-11-27 20:24:21,721 INFO L226 Difference]: Without dead ends: 7881 [2024-11-27 20:24:21,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:21,726 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 248 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:21,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 617 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:24:21,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-27 20:24:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7877. [2024-11-27 20:24:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 7876 states have (on average 1.1457592686642966) internal successors, (9024), 7876 states have internal predecessors, (9024), 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) [2024-11-27 20:24:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 9024 transitions. [2024-11-27 20:24:21,836 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 9024 transitions. Word has length 401 [2024-11-27 20:24:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:21,836 INFO L471 AbstractCegarLoop]: Abstraction has 7877 states and 9024 transitions. [2024-11-27 20:24:21,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-27 20:24:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 9024 transitions. [2024-11-27 20:24:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-27 20:24:21,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:21,840 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, 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] [2024-11-27 20:24:21,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:24:21,841 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:21,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:21,842 INFO L85 PathProgramCache]: Analyzing trace with hash 624859565, now seen corresponding path program 1 times [2024-11-27 20:24:21,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:21,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030247938] [2024-11-27 20:24:21,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:21,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 30 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:24:22,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:22,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030247938] [2024-11-27 20:24:22,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030247938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:22,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890955811] [2024-11-27 20:24:22,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:22,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:22,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:22,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:22,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:24:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:22,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:22,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-27 20:24:23,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:23,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890955811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:23,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:23,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 20:24:23,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809761578] [2024-11-27 20:24:23,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:23,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:23,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:23,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:23,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:23,202 INFO L87 Difference]: Start difference. First operand 7877 states and 9024 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-27 20:24:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:25,448 INFO L93 Difference]: Finished difference Result 18510 states and 21585 transitions. [2024-11-27 20:24:25,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:25,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 409 [2024-11-27 20:24:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:25,469 INFO L225 Difference]: With dead ends: 18510 [2024-11-27 20:24:25,469 INFO L226 Difference]: Without dead ends: 10934 [2024-11-27 20:24:25,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:25,476 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 383 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:25,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 636 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:24:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2024-11-27 20:24:25,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 10928. [2024-11-27 20:24:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10928 states, 10927 states have (on average 1.1586894847625149) internal successors, (12661), 10927 states have internal predecessors, (12661), 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) [2024-11-27 20:24:25,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10928 states to 10928 states and 12661 transitions. [2024-11-27 20:24:25,654 INFO L78 Accepts]: Start accepts. Automaton has 10928 states and 12661 transitions. Word has length 409 [2024-11-27 20:24:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:25,654 INFO L471 AbstractCegarLoop]: Abstraction has 10928 states and 12661 transitions. [2024-11-27 20:24:25,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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) [2024-11-27 20:24:25,654 INFO L276 IsEmpty]: Start isEmpty. Operand 10928 states and 12661 transitions. [2024-11-27 20:24:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-27 20:24:25,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:25,659 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:24:25,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:24:25,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:24:25,860 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:25,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:25,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1176515794, now seen corresponding path program 1 times [2024-11-27 20:24:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:25,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220645822] [2024-11-27 20:24:25,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:25,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-27 20:24:26,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:26,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220645822] [2024-11-27 20:24:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220645822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:26,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:26,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633133171] [2024-11-27 20:24:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:26,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:26,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:26,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:26,393 INFO L87 Difference]: Start difference. First operand 10928 states and 12661 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2024-11-27 20:24:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:28,167 INFO L93 Difference]: Finished difference Result 28431 states and 33049 transitions. [2024-11-27 20:24:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:28,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 481 [2024-11-27 20:24:28,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:28,202 INFO L225 Difference]: With dead ends: 28431 [2024-11-27 20:24:28,202 INFO L226 Difference]: Without dead ends: 17804 [2024-11-27 20:24:28,209 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 [2024-11-27 20:24:28,210 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 308 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:28,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 169 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:24:28,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17804 states. [2024-11-27 20:24:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17804 to 15711. [2024-11-27 20:24:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15711 states, 15710 states have (on average 1.1535327816677277) internal successors, (18122), 15710 states have internal predecessors, (18122), 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) [2024-11-27 20:24:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15711 states to 15711 states and 18122 transitions. [2024-11-27 20:24:28,409 INFO L78 Accepts]: Start accepts. Automaton has 15711 states and 18122 transitions. Word has length 481 [2024-11-27 20:24:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:28,410 INFO L471 AbstractCegarLoop]: Abstraction has 15711 states and 18122 transitions. [2024-11-27 20:24:28,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2024-11-27 20:24:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15711 states and 18122 transitions. [2024-11-27 20:24:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-11-27 20:24:28,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:28,416 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:28,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:24:28,416 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:28,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1477871461, now seen corresponding path program 1 times [2024-11-27 20:24:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:28,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231033822] [2024-11-27 20:24:28,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 469 proven. 39 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-27 20:24:29,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:29,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231033822] [2024-11-27 20:24:29,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231033822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:29,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461381927] [2024-11-27 20:24:29,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:29,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:29,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:29,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:29,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:24:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:29,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:29,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-27 20:24:29,520 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461381927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:29,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 20:24:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408150715] [2024-11-27 20:24:29,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:29,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:29,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:29,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:29,522 INFO L87 Difference]: Start difference. First operand 15711 states and 18122 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-11-27 20:24:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:31,259 INFO L93 Difference]: Finished difference Result 35602 states and 41106 transitions. [2024-11-27 20:24:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 516 [2024-11-27 20:24:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:31,288 INFO L225 Difference]: With dead ends: 35602 [2024-11-27 20:24:31,288 INFO L226 Difference]: Without dead ends: 20192 [2024-11-27 20:24:31,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:31,301 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 316 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:31,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 245 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:24:31,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20192 states. [2024-11-27 20:24:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20192 to 18396. [2024-11-27 20:24:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18396 states, 18395 states have (on average 1.1465072030443055) internal successors, (21090), 18395 states have internal predecessors, (21090), 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) [2024-11-27 20:24:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18396 states to 18396 states and 21090 transitions. [2024-11-27 20:24:31,529 INFO L78 Accepts]: Start accepts. Automaton has 18396 states and 21090 transitions. Word has length 516 [2024-11-27 20:24:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:31,530 INFO L471 AbstractCegarLoop]: Abstraction has 18396 states and 21090 transitions. [2024-11-27 20:24:31,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-11-27 20:24:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 18396 states and 21090 transitions. [2024-11-27 20:24:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-27 20:24:31,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:31,535 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:31,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:24:31,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:31,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -629138351, now seen corresponding path program 1 times [2024-11-27 20:24:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:31,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130172893] [2024-11-27 20:24:31,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-27 20:24:32,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:32,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130172893] [2024-11-27 20:24:32,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130172893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:32,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:32,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743258551] [2024-11-27 20:24:32,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:32,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:32,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:32,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:32,455 INFO L87 Difference]: Start difference. First operand 18396 states and 21090 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-27 20:24:34,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:34,589 INFO L93 Difference]: Finished difference Result 44289 states and 51198 transitions. [2024-11-27 20:24:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:34,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 520 [2024-11-27 20:24:34,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:34,626 INFO L225 Difference]: With dead ends: 44289 [2024-11-27 20:24:34,626 INFO L226 Difference]: Without dead ends: 26194 [2024-11-27 20:24:34,640 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 [2024-11-27 20:24:34,640 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:34,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 619 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:24:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26194 states. [2024-11-27 20:24:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26194 to 25576. [2024-11-27 20:24:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25576 states, 25575 states have (on average 1.1351319648093843) internal successors, (29031), 25575 states have internal predecessors, (29031), 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) [2024-11-27 20:24:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25576 states to 25576 states and 29031 transitions. [2024-11-27 20:24:35,040 INFO L78 Accepts]: Start accepts. Automaton has 25576 states and 29031 transitions. Word has length 520 [2024-11-27 20:24:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:35,041 INFO L471 AbstractCegarLoop]: Abstraction has 25576 states and 29031 transitions. [2024-11-27 20:24:35,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2024-11-27 20:24:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 25576 states and 29031 transitions. [2024-11-27 20:24:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2024-11-27 20:24:35,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:35,049 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, 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, 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] [2024-11-27 20:24:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:24:35,050 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:35,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1866465979, now seen corresponding path program 1 times [2024-11-27 20:24:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946405451] [2024-11-27 20:24:35,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:35,759 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 527 proven. 39 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-27 20:24:35,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:35,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946405451] [2024-11-27 20:24:35,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946405451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:35,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802365794] [2024-11-27 20:24:35,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:35,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:35,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:35,762 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:35,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:35,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:36,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-27 20:24:36,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:36,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802365794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:36,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:36,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 20:24:36,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617968290] [2024-11-27 20:24:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:36,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:36,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:36,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:36,145 INFO L87 Difference]: Start difference. First operand 25576 states and 29031 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2024-11-27 20:24:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:37,901 INFO L93 Difference]: Finished difference Result 54737 states and 62400 transitions. [2024-11-27 20:24:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:37,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 560 [2024-11-27 20:24:37,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:37,941 INFO L225 Difference]: With dead ends: 54737 [2024-11-27 20:24:37,941 INFO L226 Difference]: Without dead ends: 29462 [2024-11-27 20:24:37,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:37,957 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 382 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:37,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 444 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:24:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29462 states. [2024-11-27 20:24:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29462 to 21031. [2024-11-27 20:24:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21031 states, 21030 states have (on average 1.1193057536852116) internal successors, (23539), 21030 states have internal predecessors, (23539), 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) [2024-11-27 20:24:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21031 states to 21031 states and 23539 transitions. [2024-11-27 20:24:38,240 INFO L78 Accepts]: Start accepts. Automaton has 21031 states and 23539 transitions. Word has length 560 [2024-11-27 20:24:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:38,241 INFO L471 AbstractCegarLoop]: Abstraction has 21031 states and 23539 transitions. [2024-11-27 20:24:38,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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) [2024-11-27 20:24:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 21031 states and 23539 transitions. [2024-11-27 20:24:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-27 20:24:38,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:38,252 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:38,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:38,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:38,453 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:38,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1840183349, now seen corresponding path program 1 times [2024-11-27 20:24:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653573355] [2024-11-27 20:24:38,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:39,030 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-27 20:24:39,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:39,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653573355] [2024-11-27 20:24:39,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653573355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:39,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:39,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:39,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423842835] [2024-11-27 20:24:39,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:39,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:39,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:39,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:39,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:39,033 INFO L87 Difference]: Start difference. First operand 21031 states and 23539 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-27 20:24:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:41,265 INFO L93 Difference]: Finished difference Result 48351 states and 54188 transitions. [2024-11-27 20:24:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 594 [2024-11-27 20:24:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:41,284 INFO L225 Difference]: With dead ends: 48351 [2024-11-27 20:24:41,285 INFO L226 Difference]: Without dead ends: 24332 [2024-11-27 20:24:41,298 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 [2024-11-27 20:24:41,298 INFO L435 NwaCegarLoop]: 610 mSDtfsCounter, 310 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:41,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 654 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:24:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24332 states. [2024-11-27 20:24:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24332 to 23435. [2024-11-27 20:24:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23435 states, 23434 states have (on average 1.0909789195186481) internal successors, (25566), 23434 states have internal predecessors, (25566), 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) [2024-11-27 20:24:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23435 states to 23435 states and 25566 transitions. [2024-11-27 20:24:41,519 INFO L78 Accepts]: Start accepts. Automaton has 23435 states and 25566 transitions. Word has length 594 [2024-11-27 20:24:41,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:41,520 INFO L471 AbstractCegarLoop]: Abstraction has 23435 states and 25566 transitions. [2024-11-27 20:24:41,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2024-11-27 20:24:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 23435 states and 25566 transitions. [2024-11-27 20:24:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2024-11-27 20:24:41,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:41,530 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, 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, 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] [2024-11-27 20:24:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:24:41,531 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1668920954, now seen corresponding path program 1 times [2024-11-27 20:24:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:41,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993232028] [2024-11-27 20:24:41,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:24:42,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:42,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993232028] [2024-11-27 20:24:42,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993232028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:42,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:42,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:42,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847703519] [2024-11-27 20:24:42,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:42,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:42,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:42,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:42,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:42,033 INFO L87 Difference]: Start difference. First operand 23435 states and 25566 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-27 20:24:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:43,648 INFO L93 Difference]: Finished difference Result 46268 states and 50515 transitions. [2024-11-27 20:24:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 615 [2024-11-27 20:24:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:43,667 INFO L225 Difference]: With dead ends: 46268 [2024-11-27 20:24:43,667 INFO L226 Difference]: Without dead ends: 23134 [2024-11-27 20:24:43,677 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 [2024-11-27 20:24:43,678 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 464 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:43,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 70 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:24:43,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23134 states. [2024-11-27 20:24:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23134 to 23134. [2024-11-27 20:24:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23134 states, 23133 states have (on average 1.0916872001037479) internal successors, (25254), 23133 states have internal predecessors, (25254), 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) [2024-11-27 20:24:43,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23134 states to 23134 states and 25254 transitions. [2024-11-27 20:24:43,911 INFO L78 Accepts]: Start accepts. Automaton has 23134 states and 25254 transitions. Word has length 615 [2024-11-27 20:24:43,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:43,911 INFO L471 AbstractCegarLoop]: Abstraction has 23134 states and 25254 transitions. [2024-11-27 20:24:43,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-27 20:24:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 23134 states and 25254 transitions. [2024-11-27 20:24:43,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-27 20:24:43,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:43,921 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, 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, 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] [2024-11-27 20:24:43,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:24:43,922 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:43,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:43,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1206065002, now seen corresponding path program 1 times [2024-11-27 20:24:43,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:43,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297148799] [2024-11-27 20:24:43,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:43,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 685 proven. 39 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-27 20:24:44,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:44,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297148799] [2024-11-27 20:24:44,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297148799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:44,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884254674] [2024-11-27 20:24:44,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:44,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:44,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:44,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:44,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:24:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:44,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:24:44,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-27 20:24:45,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:45,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884254674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:45,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:45,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 20:24:45,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387917304] [2024-11-27 20:24:45,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:45,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:45,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:45,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:45,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:45,199 INFO L87 Difference]: Start difference. First operand 23134 states and 25254 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-27 20:24:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:47,064 INFO L93 Difference]: Finished difference Result 45062 states and 49228 transitions. [2024-11-27 20:24:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 642 [2024-11-27 20:24:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:47,087 INFO L225 Difference]: With dead ends: 45062 [2024-11-27 20:24:47,087 INFO L226 Difference]: Without dead ends: 22229 [2024-11-27 20:24:47,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:47,096 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 202 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:47,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 566 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:24:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22229 states. [2024-11-27 20:24:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22229 to 21630. [2024-11-27 20:24:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21630 states, 21629 states have (on average 1.0579777151047205) internal successors, (22883), 21629 states have internal predecessors, (22883), 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) [2024-11-27 20:24:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21630 states to 21630 states and 22883 transitions. [2024-11-27 20:24:47,261 INFO L78 Accepts]: Start accepts. Automaton has 21630 states and 22883 transitions. Word has length 642 [2024-11-27 20:24:47,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:47,261 INFO L471 AbstractCegarLoop]: Abstraction has 21630 states and 22883 transitions. [2024-11-27 20:24:47,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2024-11-27 20:24:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 21630 states and 22883 transitions. [2024-11-27 20:24:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-27 20:24:47,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:47,268 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:24:47,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:24:47,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:24:47,469 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:47,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:47,470 INFO L85 PathProgramCache]: Analyzing trace with hash 291937418, now seen corresponding path program 1 times [2024-11-27 20:24:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:47,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928931285] [2024-11-27 20:24:47,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:47,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 625 proven. 39 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-27 20:24:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:48,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928931285] [2024-11-27 20:24:48,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928931285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:48,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775092056] [2024-11-27 20:24:48,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:48,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:48,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:24:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:48,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:48,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 625 proven. 39 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-27 20:24:49,397 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 625 proven. 39 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-27 20:24:50,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775092056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:50,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:50,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-27 20:24:50,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354654906] [2024-11-27 20:24:50,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:50,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:24:50,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:50,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:24:50,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:24:50,292 INFO L87 Difference]: Start difference. First operand 21630 states and 22883 transitions. Second operand has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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) [2024-11-27 20:24:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:56,029 INFO L93 Difference]: Finished difference Result 51293 states and 54243 transitions. [2024-11-27 20:24:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:24:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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 656 [2024-11-27 20:24:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:56,047 INFO L225 Difference]: With dead ends: 51293 [2024-11-27 20:24:56,047 INFO L226 Difference]: Without dead ends: 23425 [2024-11-27 20:24:56,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1321 GetRequests, 1307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:24:56,059 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 3105 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4632 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 4632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:56,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 204 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 4632 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-27 20:24:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23425 states. [2024-11-27 20:24:56,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23425 to 19535. [2024-11-27 20:24:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19535 states, 19534 states have (on average 1.0309204464011468) internal successors, (20138), 19534 states have internal predecessors, (20138), 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) [2024-11-27 20:24:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19535 states to 19535 states and 20138 transitions. [2024-11-27 20:24:56,236 INFO L78 Accepts]: Start accepts. Automaton has 19535 states and 20138 transitions. Word has length 656 [2024-11-27 20:24:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:56,236 INFO L471 AbstractCegarLoop]: Abstraction has 19535 states and 20138 transitions. [2024-11-27 20:24:56,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 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) [2024-11-27 20:24:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 19535 states and 20138 transitions. [2024-11-27 20:24:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2024-11-27 20:24:56,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:56,241 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, 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, 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] [2024-11-27 20:24:56,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:56,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:24:56,442 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:56,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:56,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2007667598, now seen corresponding path program 1 times [2024-11-27 20:24:56,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075179610] [2024-11-27 20:24:56,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-27 20:24:56,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075179610] [2024-11-27 20:24:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075179610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:56,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:56,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:56,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41927259] [2024-11-27 20:24:56,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:56,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:56,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:56,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:56,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:56,852 INFO L87 Difference]: Start difference. First operand 19535 states and 20138 transitions. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2024-11-27 20:24:58,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:58,585 INFO L93 Difference]: Finished difference Result 41764 states and 43075 transitions. [2024-11-27 20:24:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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 659 [2024-11-27 20:24:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:58,601 INFO L225 Difference]: With dead ends: 41764 [2024-11-27 20:24:58,601 INFO L226 Difference]: Without dead ends: 22530 [2024-11-27 20:24:58,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:58,611 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 615 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:58,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 419 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:24:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22530 states. [2024-11-27 20:24:58,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22530 to 21929. [2024-11-27 20:24:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21929 states, 21928 states have (on average 1.0263589930682233) internal successors, (22506), 21928 states have internal predecessors, (22506), 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) [2024-11-27 20:24:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21929 states to 21929 states and 22506 transitions. [2024-11-27 20:24:58,783 INFO L78 Accepts]: Start accepts. Automaton has 21929 states and 22506 transitions. Word has length 659 [2024-11-27 20:24:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:58,784 INFO L471 AbstractCegarLoop]: Abstraction has 21929 states and 22506 transitions. [2024-11-27 20:24:58,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2024-11-27 20:24:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 21929 states and 22506 transitions. [2024-11-27 20:24:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2024-11-27 20:24:58,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:58,790 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:24:58,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:24:58,790 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:24:58,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1673837868, now seen corresponding path program 1 times [2024-11-27 20:24:58,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:58,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412780725] [2024-11-27 20:24:58,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-27 20:24:59,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:59,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412780725] [2024-11-27 20:24:59,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412780725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:59,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:59,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612122284] [2024-11-27 20:24:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:59,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:59,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:59,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:59,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:59,316 INFO L87 Difference]: Start difference. First operand 21929 states and 22506 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2024-11-27 20:25:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:00,548 INFO L93 Difference]: Finished difference Result 46858 states and 48100 transitions. [2024-11-27 20:25:00,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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 699 [2024-11-27 20:25:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:00,567 INFO L225 Difference]: With dead ends: 46858 [2024-11-27 20:25:00,567 INFO L226 Difference]: Without dead ends: 25230 [2024-11-27 20:25:00,576 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 [2024-11-27 20:25:00,577 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 347 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:00,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 118 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:25:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25230 states. [2024-11-27 20:25:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25230 to 21926. [2024-11-27 20:25:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21926 states, 21925 states have (on average 1.024903078677309) internal successors, (22471), 21925 states have internal predecessors, (22471), 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) [2024-11-27 20:25:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21926 states to 21926 states and 22471 transitions. [2024-11-27 20:25:00,765 INFO L78 Accepts]: Start accepts. Automaton has 21926 states and 22471 transitions. Word has length 699 [2024-11-27 20:25:00,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:00,766 INFO L471 AbstractCegarLoop]: Abstraction has 21926 states and 22471 transitions. [2024-11-27 20:25:00,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 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) [2024-11-27 20:25:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21926 states and 22471 transitions. [2024-11-27 20:25:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2024-11-27 20:25:00,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:00,772 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:25:00,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:25:00,772 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:00,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1173180747, now seen corresponding path program 1 times [2024-11-27 20:25:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:00,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441517435] [2024-11-27 20:25:00,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:00,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-27 20:25:01,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:01,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441517435] [2024-11-27 20:25:01,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441517435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:01,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:01,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:01,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138337125] [2024-11-27 20:25:01,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:01,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:25:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:01,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:25:01,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:01,616 INFO L87 Difference]: Start difference. First operand 21926 states and 22471 transitions. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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) [2024-11-27 20:25:03,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:03,528 INFO L93 Difference]: Finished difference Result 51644 states and 52916 transitions. [2024-11-27 20:25:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:25:03,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 719 [2024-11-27 20:25:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:03,557 INFO L225 Difference]: With dead ends: 51644 [2024-11-27 20:25:03,558 INFO L226 Difference]: Without dead ends: 30019 [2024-11-27 20:25:03,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:03,568 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 523 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:03,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 153 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:25:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30019 states. [2024-11-27 20:25:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30019 to 27323. [2024-11-27 20:25:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27323 states, 27322 states have (on average 1.0249249688895397) internal successors, (28003), 27322 states have internal predecessors, (28003), 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) [2024-11-27 20:25:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27323 states to 27323 states and 28003 transitions. [2024-11-27 20:25:03,815 INFO L78 Accepts]: Start accepts. Automaton has 27323 states and 28003 transitions. Word has length 719 [2024-11-27 20:25:03,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:03,816 INFO L471 AbstractCegarLoop]: Abstraction has 27323 states and 28003 transitions. [2024-11-27 20:25:03,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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) [2024-11-27 20:25:03,816 INFO L276 IsEmpty]: Start isEmpty. Operand 27323 states and 28003 transitions. [2024-11-27 20:25:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2024-11-27 20:25:03,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:03,826 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, 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, 3, 3, 3, 3, 3, 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] [2024-11-27 20:25:03,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:25:03,826 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:03,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 359955969, now seen corresponding path program 1 times [2024-11-27 20:25:03,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:03,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864364422] [2024-11-27 20:25:03,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:03,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:25:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864364422] [2024-11-27 20:25:04,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864364422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:04,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:04,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:25:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89560529] [2024-11-27 20:25:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:04,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:25:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:04,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:25:04,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:04,294 INFO L87 Difference]: Start difference. First operand 27323 states and 28003 transitions. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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) [2024-11-27 20:25:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:06,022 INFO L93 Difference]: Finished difference Result 60035 states and 61515 transitions. [2024-11-27 20:25:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:25:06,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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 778 [2024-11-27 20:25:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:06,048 INFO L225 Difference]: With dead ends: 60035 [2024-11-27 20:25:06,048 INFO L226 Difference]: Without dead ends: 33013 [2024-11-27 20:25:06,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:25:06,062 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 533 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:06,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 171 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:25:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33013 states. [2024-11-27 20:25:06,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33013 to 27323. [2024-11-27 20:25:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27323 states, 27322 states have (on average 1.0249249688895397) internal successors, (28003), 27322 states have internal predecessors, (28003), 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) [2024-11-27 20:25:06,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27323 states to 27323 states and 28003 transitions. [2024-11-27 20:25:06,329 INFO L78 Accepts]: Start accepts. Automaton has 27323 states and 28003 transitions. Word has length 778 [2024-11-27 20:25:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:06,330 INFO L471 AbstractCegarLoop]: Abstraction has 27323 states and 28003 transitions. [2024-11-27 20:25:06,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 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) [2024-11-27 20:25:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 27323 states and 28003 transitions. [2024-11-27 20:25:06,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-27 20:25:06,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:06,339 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:25:06,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 20:25:06,340 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:06,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1524543446, now seen corresponding path program 1 times [2024-11-27 20:25:06,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:06,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646434656] [2024-11-27 20:25:06,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:06,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-27 20:25:06,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:06,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646434656] [2024-11-27 20:25:06,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646434656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:06,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:06,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:06,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421128027] [2024-11-27 20:25:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:06,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:06,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:06,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:06,901 INFO L87 Difference]: Start difference. First operand 27323 states and 28003 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:25:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:07,891 INFO L93 Difference]: Finished difference Result 45626 states and 46720 transitions. [2024-11-27 20:25:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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 786 [2024-11-27 20:25:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:07,907 INFO L225 Difference]: With dead ends: 45626 [2024-11-27 20:25:07,907 INFO L226 Difference]: Without dead ends: 18604 [2024-11-27 20:25:07,915 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 [2024-11-27 20:25:07,916 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 216 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:07,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 358 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:25:07,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18604 states. [2024-11-27 20:25:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18604 to 15909. [2024-11-27 20:25:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15909 states, 15908 states have (on average 1.0208071410611013) internal successors, (16239), 15908 states have internal predecessors, (16239), 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) [2024-11-27 20:25:08,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15909 states to 15909 states and 16239 transitions. [2024-11-27 20:25:08,061 INFO L78 Accepts]: Start accepts. Automaton has 15909 states and 16239 transitions. Word has length 786 [2024-11-27 20:25:08,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:08,062 INFO L471 AbstractCegarLoop]: Abstraction has 15909 states and 16239 transitions. [2024-11-27 20:25:08,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:25:08,062 INFO L276 IsEmpty]: Start isEmpty. Operand 15909 states and 16239 transitions. [2024-11-27 20:25:08,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2024-11-27 20:25:08,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:08,072 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:25:08,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:25:08,072 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:08,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash -594814793, now seen corresponding path program 1 times [2024-11-27 20:25:08,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918203260] [2024-11-27 20:25:08,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:08,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2024-11-27 20:25:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:08,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918203260] [2024-11-27 20:25:08,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918203260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:08,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:08,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978802918] [2024-11-27 20:25:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:08,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:08,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:08,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:08,457 INFO L87 Difference]: Start difference. First operand 15909 states and 16239 transitions. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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) [2024-11-27 20:25:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:09,354 INFO L93 Difference]: Finished difference Result 32413 states and 33083 transitions. [2024-11-27 20:25:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 824 [2024-11-27 20:25:09,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:09,366 INFO L225 Difference]: With dead ends: 32413 [2024-11-27 20:25:09,366 INFO L226 Difference]: Without dead ends: 16805 [2024-11-27 20:25:09,371 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 [2024-11-27 20:25:09,372 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 308 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:09,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 418 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:25:09,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16805 states. [2024-11-27 20:25:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16805 to 15609. [2024-11-27 20:25:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15609 states, 15608 states have (on average 1.0206304459251665) internal successors, (15930), 15608 states have internal predecessors, (15930), 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) [2024-11-27 20:25:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15609 states to 15609 states and 15930 transitions. [2024-11-27 20:25:09,590 INFO L78 Accepts]: Start accepts. Automaton has 15609 states and 15930 transitions. Word has length 824 [2024-11-27 20:25:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:09,590 INFO L471 AbstractCegarLoop]: Abstraction has 15609 states and 15930 transitions. [2024-11-27 20:25:09,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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) [2024-11-27 20:25:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15609 states and 15930 transitions. [2024-11-27 20:25:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-11-27 20:25:09,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:09,597 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, 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, 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, 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] [2024-11-27 20:25:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 20:25:09,597 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:09,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1707436180, now seen corresponding path program 1 times [2024-11-27 20:25:09,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:09,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409629032] [2024-11-27 20:25:09,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:09,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2024-11-27 20:25:10,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:10,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409629032] [2024-11-27 20:25:10,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409629032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:10,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:10,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154236231] [2024-11-27 20:25:10,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:10,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:10,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:10,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:10,148 INFO L87 Difference]: Start difference. First operand 15609 states and 15930 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2024-11-27 20:25:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:11,136 INFO L93 Difference]: Finished difference Result 36314 states and 37068 transitions. [2024-11-27 20:25:11,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:11,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 835 [2024-11-27 20:25:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:11,150 INFO L225 Difference]: With dead ends: 36314 [2024-11-27 20:25:11,150 INFO L226 Difference]: Without dead ends: 20707 [2024-11-27 20:25:11,156 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 [2024-11-27 20:25:11,156 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 292 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:11,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 409 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:25:11,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20707 states. [2024-11-27 20:25:11,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20707 to 18902. [2024-11-27 20:25:11,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18902 states, 18901 states have (on average 1.0207396434051108) internal successors, (19293), 18901 states have internal predecessors, (19293), 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) [2024-11-27 20:25:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18902 states to 18902 states and 19293 transitions. [2024-11-27 20:25:11,321 INFO L78 Accepts]: Start accepts. Automaton has 18902 states and 19293 transitions. Word has length 835 [2024-11-27 20:25:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:11,321 INFO L471 AbstractCegarLoop]: Abstraction has 18902 states and 19293 transitions. [2024-11-27 20:25:11,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2024-11-27 20:25:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18902 states and 19293 transitions. [2024-11-27 20:25:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2024-11-27 20:25:11,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:11,330 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, 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, 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, 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] [2024-11-27 20:25:11,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 20:25:11,330 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:11,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1751874221, now seen corresponding path program 1 times [2024-11-27 20:25:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:11,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549965173] [2024-11-27 20:25:11,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:11,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-11-27 20:25:11,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549965173] [2024-11-27 20:25:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549965173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:11,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:11,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726010824] [2024-11-27 20:25:11,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:11,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:11,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:11,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:11,801 INFO L87 Difference]: Start difference. First operand 18902 states and 19293 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-11-27 20:25:12,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:12,784 INFO L93 Difference]: Finished difference Result 37501 states and 38288 transitions. [2024-11-27 20:25:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:12,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 860 [2024-11-27 20:25:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:12,798 INFO L225 Difference]: With dead ends: 37501 [2024-11-27 20:25:12,798 INFO L226 Difference]: Without dead ends: 18601 [2024-11-27 20:25:12,806 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 [2024-11-27 20:25:12,807 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 294 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:12,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 398 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:25:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18601 states. [2024-11-27 20:25:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18601 to 14398. [2024-11-27 20:25:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14398 states, 14397 states have (on average 1.016739598527471) internal successors, (14638), 14397 states have internal predecessors, (14638), 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) [2024-11-27 20:25:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14398 states to 14398 states and 14638 transitions. [2024-11-27 20:25:12,941 INFO L78 Accepts]: Start accepts. Automaton has 14398 states and 14638 transitions. Word has length 860 [2024-11-27 20:25:12,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:12,942 INFO L471 AbstractCegarLoop]: Abstraction has 14398 states and 14638 transitions. [2024-11-27 20:25:12,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2024-11-27 20:25:12,942 INFO L276 IsEmpty]: Start isEmpty. Operand 14398 states and 14638 transitions. [2024-11-27 20:25:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2024-11-27 20:25:12,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:12,951 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:25:12,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 20:25:12,951 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:25:12,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:12,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2095587486, now seen corresponding path program 1 times [2024-11-27 20:25:12,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:12,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146668558] [2024-11-27 20:25:12,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:12,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2024-11-27 20:25:13,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:13,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146668558] [2024-11-27 20:25:13,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146668558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:25:13,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:25:13,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:25:13,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080863900] [2024-11-27 20:25:13,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:25:13,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:25:13,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:13,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:25:13,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:25:13,538 INFO L87 Difference]: Start difference. First operand 14398 states and 14638 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-27 20:25:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:14,431 INFO L93 Difference]: Finished difference Result 30291 states and 30797 transitions. [2024-11-27 20:25:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:25:14,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 942 [2024-11-27 20:25:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:14,433 INFO L225 Difference]: With dead ends: 30291 [2024-11-27 20:25:14,434 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:25:14,441 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 [2024-11-27 20:25:14,441 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 274 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:14,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 414 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:25:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:25:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:25:14,443 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) [2024-11-27 20:25:14,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:25:14,443 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 942 [2024-11-27 20:25:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:14,444 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:25:14,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2024-11-27 20:25:14,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:25:14,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:25:14,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:25:14,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:25:14,451 INFO L422 BasicCegarLoop]: Path program 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] [2024-11-27 20:25:14,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:25:19,988 WARN L286 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 474 DAG size of output: 503 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:25:24,910 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:25:25,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:25:25 BoogieIcfgContainer [2024-11-27 20:25:25,034 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:25:25,036 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:25:25,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:25:25,040 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:25:25,041 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:57" (3/4) ... [2024-11-27 20:25:25,048 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:25:25,132 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-27 20:25:25,135 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:25:25,138 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:25:25,141 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:25:25,536 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:25:25,537 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:25:25,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:25:25,538 INFO L158 Benchmark]: Toolchain (without parser) took 93263.19ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 114.1MB in the beginning and 246.1MB in the end (delta: -132.0MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,542 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:25:25,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1138.29ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 89.3MB in the end (delta: 24.8MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 256.78ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 52.4MB in the end (delta: 36.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,544 INFO L158 Benchmark]: Boogie Preprocessor took 422.62ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 52.4MB in the beginning and 321.5MB in the end (delta: -269.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,544 INFO L158 Benchmark]: RCFGBuilder took 3644.77ms. Allocated memory is still 427.8MB. Free memory was 321.5MB in the beginning and 311.7MB in the end (delta: 9.7MB). Peak memory consumption was 197.3MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,545 INFO L158 Benchmark]: TraceAbstraction took 87290.13ms. Allocated memory was 427.8MB in the beginning and 394.3MB in the end (delta: -33.6MB). Free memory was 311.7MB in the beginning and 267.0MB in the end (delta: 44.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-27 20:25:25,549 INFO L158 Benchmark]: Witness Printer took 501.29ms. Allocated memory is still 394.3MB. Free memory was 267.0MB in the beginning and 246.1MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:25:25,551 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 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1138.29ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 89.3MB in the end (delta: 24.8MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 256.78ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 52.4MB in the end (delta: 36.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 422.62ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 52.4MB in the beginning and 321.5MB in the end (delta: -269.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * RCFGBuilder took 3644.77ms. Allocated memory is still 427.8MB. Free memory was 321.5MB in the beginning and 311.7MB in the end (delta: 9.7MB). Peak memory consumption was 197.3MB. Max. memory is 16.1GB. * TraceAbstraction took 87290.13ms. Allocated memory was 427.8MB in the beginning and 394.3MB in the end (delta: -33.6MB). Free memory was 311.7MB in the beginning and 267.0MB in the end (delta: 44.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 501.29ms. Allocated memory is still 394.3MB. Free memory was 267.0MB in the beginning and 246.1MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.6s, OverallIterations: 27, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 51.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11361 SdHoareTripleChecker+Valid, 47.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11361 mSDsluCounter, 10406 SdHoareTripleChecker+Invalid, 40.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1027 mSDsCounter, 4441 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28804 IncrementalHoareTripleChecker+Invalid, 33245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4441 mSolverCounterUnsat, 9379 mSDtfsCounter, 28804 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3524 GetRequests, 3469 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27323occurred in iteration=21, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 44139 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 17116 NumberOfCodeBlocks, 17116 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 17739 ConstructedInterpolants, 0 QuantifiedInterpolants, 39923 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3437 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 33 InterpolantComputations, 26 PerfectInterpolantSequences, 20314/20683 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: 1776]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((long long) 89 + a4) <= 0) && (((long long) a0 + 3672) <= 0)) || (((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || ((((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (0 <= ((long long) 599998 + a0))) && (a2 == 4))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (3 == a2))) || ((((((long long) 42 + a4) <= 0) && (0 <= ((long long) 599998 + a0))) && (((long long) a0 + 147) <= 0)) && (5 <= a2))) || ((((((long long) 104 + a0) <= 0) && (2 <= a29)) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (a29 <= 43))) || (((2 == a2) && (44 <= a29)) && (((long long) a0 + 147) <= 0))) || ((((((0 <= ((long long) 140 + a0)) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 73))) && (3 == a2)) || (((((0 <= ((long long) 140 + a0)) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (3 == a2))) && (((long long) 98 + a0) <= 0))) || (((44 <= a29) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || ((2 == a2) && (((long long) 89 + a4) <= 0))) || ((((((long long) 42 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 3672) <= 0)) && (a29 <= 43))) || ((((((long long) 42 + a4) <= 0) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (a2 == 1))) || (((((long long) a29 + 145) <= 0) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) 599998 + a0))) && (a2 == 4)) && (((long long) a0 + 3672) <= 0))) || (((0 <= ((long long) 97 + a0)) && (((long long) 89 + a4) <= 0)) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (((long long) a0 + 61) <= 0))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (5 <= a2))) || (((((((long long) 104 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (3 == a2)) && (a29 <= 43))) || (((0 <= ((long long) 599998 + a0)) && ((((((long long) 42 + a4) <= 0) && (a2 == 1)) && (((long long) a0 + 61) <= 0)) || (((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (a2 == 1)))) && (a29 <= 43))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (0 <= ((long long) 44 + a0))) && (((long long) a29 + 127) == 0))) || (((((long long) 89 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (3 == a2))) || ((((long long) 89 + a4) <= 0) && (5 <= a2))) || ((((((long long) 42 + a4) <= 0) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:25:25,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d5becf-1383-437e-b4da-d02805edea58/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