./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label33.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_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/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_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label33.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/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_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/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 41b8f78fa335f1640e7fa17c2ba64c4ba903ee291b35e4b6f69ac60caf93828b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:15:15,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:15:16,026 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:15:16,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:15:16,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:15:16,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:15:16,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:15:16,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:15:16,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:15:16,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:15:16,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:15:16,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:15:16,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:15:16,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:15:16,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:15:16,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:15:16,074 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:15:16,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:15:16,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:15:16,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:15:16,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:15:16,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:15:16,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:15:16,077 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_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/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 -> 41b8f78fa335f1640e7fa17c2ba64c4ba903ee291b35e4b6f69ac60caf93828b [2024-11-28 05:15:16,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:15:16,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:15:16,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:15:16,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:15:16,399 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:15:16,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem18_label33.c [2024-11-28 05:15:19,379 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/data/fbe0c1f90/e41f672f139847788add0d306c9a0a07/FLAGe59ad2740 [2024-11-28 05:15:19,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:15:19,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/sv-benchmarks/c/eca-rers2012/Problem18_label33.c [2024-11-28 05:15:19,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/data/fbe0c1f90/e41f672f139847788add0d306c9a0a07/FLAGe59ad2740 [2024-11-28 05:15:19,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/data/fbe0c1f90/e41f672f139847788add0d306c9a0a07 [2024-11-28 05:15:19,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:15:19,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:15:19,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:15:19,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:15:19,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:15:19,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:15:19" (1/1) ... [2024-11-28 05:15:19,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1216daeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:19, skipping insertion in model container [2024-11-28 05:15:19,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:15:19" (1/1) ... [2024-11-28 05:15:20,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:15:20,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/sv-benchmarks/c/eca-rers2012/Problem18_label33.c[2701,2714] [2024-11-28 05:15:21,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:15:21,111 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:15:21,168 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_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/sv-benchmarks/c/eca-rers2012/Problem18_label33.c[2701,2714] [2024-11-28 05:15:21,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:15:21,563 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:15:21,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21 WrapperNode [2024-11-28 05:15:21,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:15:21,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:15:21,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:15:21,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:15:21,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:21,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:21,870 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-28 05:15:21,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:15:21,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:15:21,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:15:21,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:15:21,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:21,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:21,916 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,070 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:15:22,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,148 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:15:22,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:15:22,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:15:22,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:15:22,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (1/1) ... [2024-11-28 05:15:22,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:15:22,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:15:22,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:15:22,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:15:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:15:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:15:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:15:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:15:22,531 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:15:22,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:15:27,277 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-28 05:15:27,280 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:15:27,326 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:15:27,327 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:15:27,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:15:27 BoogieIcfgContainer [2024-11-28 05:15:27,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:15:27,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:15:27,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:15:27,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:15:27,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:15:19" (1/3) ... [2024-11-28 05:15:27,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a365c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:15:27, skipping insertion in model container [2024-11-28 05:15:27,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:15:21" (2/3) ... [2024-11-28 05:15:27,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a365c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:15:27, skipping insertion in model container [2024-11-28 05:15:27,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:15:27" (3/3) ... [2024-11-28 05:15:27,344 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem18_label33.c [2024-11-28 05:15:27,361 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:15:27,363 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem18_label33.c that has 1 procedures, 757 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:15:27,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:15:27,452 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;@55b3cc84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:15:27,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:15:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:27,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:15:27,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:27,466 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] [2024-11-28 05:15:27,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:27,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash -573341295, now seen corresponding path program 1 times [2024-11-28 05:15:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:27,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132326472] [2024-11-28 05:15:27,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:27,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:27,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132326472] [2024-11-28 05:15:27,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132326472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:27,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:27,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:15:27,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267948980] [2024-11-28 05:15:27,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:27,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:15:27,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:27,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:15:27,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:27,786 INFO L87 Difference]: Start difference. First operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 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 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:31,921 INFO L93 Difference]: Finished difference Result 2205 states and 4266 transitions. [2024-11-28 05:15:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:15:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2024-11-28 05:15:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:31,946 INFO L225 Difference]: With dead ends: 2205 [2024-11-28 05:15:31,946 INFO L226 Difference]: Without dead ends: 1384 [2024-11-28 05:15:31,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:31,955 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 725 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:31,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 291 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 05:15:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-28 05:15:32,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-28 05:15:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 1.7339117859725235) internal successors, (2398), 1383 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2398 transitions. [2024-11-28 05:15:32,086 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2398 transitions. Word has length 23 [2024-11-28 05:15:32,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:32,087 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2398 transitions. [2024-11-28 05:15:32,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2398 transitions. [2024-11-28 05:15:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 05:15:32,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:32,093 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 05:15:32,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:15:32,094 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:32,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:32,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2232940, now seen corresponding path program 1 times [2024-11-28 05:15:32,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:32,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568636344] [2024-11-28 05:15:32,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:32,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:32,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568636344] [2024-11-28 05:15:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568636344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:32,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:32,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:15:32,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377824419] [2024-11-28 05:15:32,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:32,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:15:32,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:32,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:15:32,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:15:32,681 INFO L87 Difference]: Start difference. First operand 1384 states and 2398 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:38,406 INFO L93 Difference]: Finished difference Result 4842 states and 8275 transitions. [2024-11-28 05:15:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:15:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-28 05:15:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:38,421 INFO L225 Difference]: With dead ends: 4842 [2024-11-28 05:15:38,422 INFO L226 Difference]: Without dead ends: 3460 [2024-11-28 05:15:38,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:15:38,426 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 2034 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3268 mSolverCounterSat, 1420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 4688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1420 IncrementalHoareTripleChecker+Valid, 3268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:38,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 137 Invalid, 4688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1420 Valid, 3268 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 05:15:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2024-11-28 05:15:38,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3454. [2024-11-28 05:15:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 1.540689255719664) internal successors, (5320), 3453 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5320 transitions. [2024-11-28 05:15:38,569 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5320 transitions. Word has length 92 [2024-11-28 05:15:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:38,570 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 5320 transitions. [2024-11-28 05:15:38,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5320 transitions. [2024-11-28 05:15:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-28 05:15:38,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:38,578 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:38,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:15:38,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:38,580 INFO L85 PathProgramCache]: Analyzing trace with hash -617547171, now seen corresponding path program 1 times [2024-11-28 05:15:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:38,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238164510] [2024-11-28 05:15:38,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-28 05:15:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238164510] [2024-11-28 05:15:39,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238164510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:39,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:39,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:15:39,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318286531] [2024-11-28 05:15:39,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:39,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:15:39,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:39,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:15:39,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:15:39,602 INFO L87 Difference]: Start difference. First operand 3454 states and 5320 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:44,659 INFO L93 Difference]: Finished difference Result 11046 states and 17161 transitions. [2024-11-28 05:15:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:15:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 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 201 [2024-11-28 05:15:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:44,688 INFO L225 Difference]: With dead ends: 11046 [2024-11-28 05:15:44,689 INFO L226 Difference]: Without dead ends: 7594 [2024-11-28 05:15:44,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:15:44,694 INFO L435 NwaCegarLoop]: 630 mSDtfsCounter, 1923 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 5006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:44,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 647 Invalid, 5006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 4378 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 05:15:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7594 states. [2024-11-28 05:15:44,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7594 to 6904. [2024-11-28 05:15:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 6903 states have (on average 1.326959293060988) internal successors, (9160), 6903 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9160 transitions. [2024-11-28 05:15:44,840 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9160 transitions. Word has length 201 [2024-11-28 05:15:44,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:44,841 INFO L471 AbstractCegarLoop]: Abstraction has 6904 states and 9160 transitions. [2024-11-28 05:15:44,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9160 transitions. [2024-11-28 05:15:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-28 05:15:44,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:44,850 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:44,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:15:44,851 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:44,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:44,855 INFO L85 PathProgramCache]: Analyzing trace with hash -877521604, now seen corresponding path program 1 times [2024-11-28 05:15:44,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:44,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026673200] [2024-11-28 05:15:44,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:44,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:15:45,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:45,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026673200] [2024-11-28 05:15:45,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026673200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:45,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:45,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:15:45,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732305928] [2024-11-28 05:15:45,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:45,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:15:45,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:45,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:15:45,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:15:45,669 INFO L87 Difference]: Start difference. First operand 6904 states and 9160 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:49,334 INFO L93 Difference]: Finished difference Result 16619 states and 22097 transitions. [2024-11-28 05:15:49,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:15:49,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 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 290 [2024-11-28 05:15:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:49,364 INFO L225 Difference]: With dead ends: 16619 [2024-11-28 05:15:49,364 INFO L226 Difference]: Without dead ends: 9664 [2024-11-28 05:15:49,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:15:49,371 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 513 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 3725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:49,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 637 Invalid, 3725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 05:15:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9664 states. [2024-11-28 05:15:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9664 to 8974. [2024-11-28 05:15:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8974 states, 8973 states have (on average 1.1907946060403432) internal successors, (10685), 8973 states have internal predecessors, (10685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8974 states to 8974 states and 10685 transitions. [2024-11-28 05:15:49,532 INFO L78 Accepts]: Start accepts. Automaton has 8974 states and 10685 transitions. Word has length 290 [2024-11-28 05:15:49,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:49,533 INFO L471 AbstractCegarLoop]: Abstraction has 8974 states and 10685 transitions. [2024-11-28 05:15:49,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:49,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8974 states and 10685 transitions. [2024-11-28 05:15:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2024-11-28 05:15:49,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:49,560 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:49,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:15:49,561 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:49,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:49,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1205180972, now seen corresponding path program 1 times [2024-11-28 05:15:49,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:49,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200162534] [2024-11-28 05:15:49,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:49,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2024-11-28 05:15:51,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:51,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200162534] [2024-11-28 05:15:51,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200162534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:51,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:51,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:15:51,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803873020] [2024-11-28 05:15:51,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:51,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:15:51,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:51,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:15:51,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:51,081 INFO L87 Difference]: Start difference. First operand 8974 states and 10685 transitions. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:53,854 INFO L93 Difference]: Finished difference Result 20016 states and 24051 transitions. [2024-11-28 05:15:53,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:15:53,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 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 922 [2024-11-28 05:15:53,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:53,885 INFO L225 Difference]: With dead ends: 20016 [2024-11-28 05:15:53,885 INFO L226 Difference]: Without dead ends: 11044 [2024-11-28 05:15:53,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:53,895 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 249 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:53,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 77 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 05:15:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2024-11-28 05:15:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 11044. [2024-11-28 05:15:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11044 states, 11043 states have (on average 1.1927012587159287) internal successors, (13171), 11043 states have internal predecessors, (13171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11044 states to 11044 states and 13171 transitions. [2024-11-28 05:15:54,152 INFO L78 Accepts]: Start accepts. Automaton has 11044 states and 13171 transitions. Word has length 922 [2024-11-28 05:15:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:54,155 INFO L471 AbstractCegarLoop]: Abstraction has 11044 states and 13171 transitions. [2024-11-28 05:15:54,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11044 states and 13171 transitions. [2024-11-28 05:15:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2024-11-28 05:15:54,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:54,198 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:54,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:15:54,200 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:54,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:54,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1792413419, now seen corresponding path program 1 times [2024-11-28 05:15:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:54,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879938322] [2024-11-28 05:15:54,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-11-28 05:15:55,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879938322] [2024-11-28 05:15:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879938322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:55,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:55,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:15:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257068316] [2024-11-28 05:15:55,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:55,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:15:55,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:55,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:15:55,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:55,603 INFO L87 Difference]: Start difference. First operand 11044 states and 13171 transitions. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:58,527 INFO L93 Difference]: Finished difference Result 26916 states and 33022 transitions. [2024-11-28 05:15:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:15:58,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 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 927 [2024-11-28 05:15:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:58,568 INFO L225 Difference]: With dead ends: 26916 [2024-11-28 05:15:58,568 INFO L226 Difference]: Without dead ends: 15874 [2024-11-28 05:15:58,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:15:58,580 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 226 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:58,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 389 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 05:15:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15874 states. [2024-11-28 05:15:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15874 to 14494. [2024-11-28 05:15:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14494 states, 14493 states have (on average 1.1620782446698406) internal successors, (16842), 14493 states have internal predecessors, (16842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14494 states to 14494 states and 16842 transitions. [2024-11-28 05:15:58,821 INFO L78 Accepts]: Start accepts. Automaton has 14494 states and 16842 transitions. Word has length 927 [2024-11-28 05:15:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:58,823 INFO L471 AbstractCegarLoop]: Abstraction has 14494 states and 16842 transitions. [2024-11-28 05:15:58,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 2 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:15:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 14494 states and 16842 transitions. [2024-11-28 05:15:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2024-11-28 05:15:58,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:58,835 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:58,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:15:58,836 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:58,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:58,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1088785092, now seen corresponding path program 1 times [2024-11-28 05:15:58,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:58,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261207251] [2024-11-28 05:15:58,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:58,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-28 05:16:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261207251] [2024-11-28 05:16:00,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261207251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:00,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487036370] [2024-11-28 05:16:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:00,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:00,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:00,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:00,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:00,126 INFO L87 Difference]: Start difference. First operand 14494 states and 16842 transitions. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:02,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:02,697 INFO L93 Difference]: Finished difference Result 33816 states and 39942 transitions. [2024-11-28 05:16:02,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:02,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 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 1008 [2024-11-28 05:16:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:02,744 INFO L225 Difference]: With dead ends: 33816 [2024-11-28 05:16:02,745 INFO L226 Difference]: Without dead ends: 19324 [2024-11-28 05:16:02,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:02,757 INFO L435 NwaCegarLoop]: 925 mSDtfsCounter, 708 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:02,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 932 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 05:16:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19324 states. [2024-11-28 05:16:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19324 to 19324. [2024-11-28 05:16:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19323 states have (on average 1.1386430678466077) internal successors, (22002), 19323 states have internal predecessors, (22002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 22002 transitions. [2024-11-28 05:16:03,031 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 22002 transitions. Word has length 1008 [2024-11-28 05:16:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:03,033 INFO L471 AbstractCegarLoop]: Abstraction has 19324 states and 22002 transitions. [2024-11-28 05:16:03,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 22002 transitions. [2024-11-28 05:16:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1046 [2024-11-28 05:16:03,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:03,048 INFO L218 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:03,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:16:03,049 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:03,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:03,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2090409379, now seen corresponding path program 1 times [2024-11-28 05:16:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:03,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524182253] [2024-11-28 05:16:03,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:03,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:05,229 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 05:16:05,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:05,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524182253] [2024-11-28 05:16:05,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524182253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:05,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:05,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:05,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610297109] [2024-11-28 05:16:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:05,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:05,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:05,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:05,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:05,235 INFO L87 Difference]: Start difference. First operand 19324 states and 22002 transitions. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:08,324 INFO L93 Difference]: Finished difference Result 46236 states and 53073 transitions. [2024-11-28 05:16:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:08,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 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 1045 [2024-11-28 05:16:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:08,387 INFO L225 Difference]: With dead ends: 46236 [2024-11-28 05:16:08,388 INFO L226 Difference]: Without dead ends: 26914 [2024-11-28 05:16:08,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:08,409 INFO L435 NwaCegarLoop]: 1049 mSDtfsCounter, 574 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:08,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1056 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 05:16:08,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26914 states. [2024-11-28 05:16:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26914 to 26224. [2024-11-28 05:16:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26224 states, 26223 states have (on average 1.1234031193990008) internal successors, (29459), 26223 states have internal predecessors, (29459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26224 states to 26224 states and 29459 transitions. [2024-11-28 05:16:08,831 INFO L78 Accepts]: Start accepts. Automaton has 26224 states and 29459 transitions. Word has length 1045 [2024-11-28 05:16:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:08,833 INFO L471 AbstractCegarLoop]: Abstraction has 26224 states and 29459 transitions. [2024-11-28 05:16:08,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 26224 states and 29459 transitions. [2024-11-28 05:16:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2024-11-28 05:16:08,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:08,850 INFO L218 NwaCegarLoop]: trace histogram [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, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:08,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:16:08,851 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:08,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash -810035210, now seen corresponding path program 1 times [2024-11-28 05:16:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850886251] [2024-11-28 05:16:08,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 365 proven. 555 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-28 05:16:11,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:11,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850886251] [2024-11-28 05:16:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850886251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:11,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192844014] [2024-11-28 05:16:11,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:11,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:11,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:11,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:16:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:11,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:16:11,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 454 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-28 05:16:12,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:12,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192844014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:12,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:16:12,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-28 05:16:12,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884714913] [2024-11-28 05:16:12,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:12,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:12,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:12,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:16:12,199 INFO L87 Difference]: Start difference. First operand 26224 states and 29459 transitions. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:15,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:15,034 INFO L93 Difference]: Finished difference Result 61416 states and 69000 transitions. [2024-11-28 05:16:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:15,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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 1098 [2024-11-28 05:16:15,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:15,079 INFO L225 Difference]: With dead ends: 61416 [2024-11-28 05:16:15,079 INFO L226 Difference]: Without dead ends: 31054 [2024-11-28 05:16:15,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1103 GetRequests, 1098 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:16:15,100 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 649 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:15,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 973 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 05:16:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31054 states. [2024-11-28 05:16:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31054 to 30364. [2024-11-28 05:16:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30364 states, 30363 states have (on average 1.0569113723940322) internal successors, (32091), 30363 states have internal predecessors, (32091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30364 states to 30364 states and 32091 transitions. [2024-11-28 05:16:15,591 INFO L78 Accepts]: Start accepts. Automaton has 30364 states and 32091 transitions. Word has length 1098 [2024-11-28 05:16:15,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:15,593 INFO L471 AbstractCegarLoop]: Abstraction has 30364 states and 32091 transitions. [2024-11-28 05:16:15,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 30364 states and 32091 transitions. [2024-11-28 05:16:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2024-11-28 05:16:15,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:15,629 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:15,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:16:15,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:15,830 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:15,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash 158366766, now seen corresponding path program 1 times [2024-11-28 05:16:15,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:15,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439710715] [2024-11-28 05:16:15,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-28 05:16:17,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:17,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439710715] [2024-11-28 05:16:17,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439710715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:17,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:17,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736192284] [2024-11-28 05:16:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:17,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:17,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:17,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:17,115 INFO L87 Difference]: Start difference. First operand 30364 states and 32091 transitions. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:19,890 INFO L93 Difference]: Finished difference Result 71076 states and 75471 transitions. [2024-11-28 05:16:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:19,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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 1145 [2024-11-28 05:16:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:19,939 INFO L225 Difference]: With dead ends: 71076 [2024-11-28 05:16:19,939 INFO L226 Difference]: Without dead ends: 41404 [2024-11-28 05:16:19,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:19,961 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 546 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:19,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 980 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 05:16:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41404 states. [2024-11-28 05:16:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41404 to 40024. [2024-11-28 05:16:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40024 states, 40023 states have (on average 1.0542937810758815) internal successors, (42196), 40023 states have internal predecessors, (42196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40024 states to 40024 states and 42196 transitions. [2024-11-28 05:16:20,528 INFO L78 Accepts]: Start accepts. Automaton has 40024 states and 42196 transitions. Word has length 1145 [2024-11-28 05:16:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:20,529 INFO L471 AbstractCegarLoop]: Abstraction has 40024 states and 42196 transitions. [2024-11-28 05:16:20,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 40024 states and 42196 transitions. [2024-11-28 05:16:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2024-11-28 05:16:20,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:20,550 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:20,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:16:20,551 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:20,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1294972778, now seen corresponding path program 1 times [2024-11-28 05:16:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711810982] [2024-11-28 05:16:20,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1201 trivial. 0 not checked. [2024-11-28 05:16:22,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:22,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711810982] [2024-11-28 05:16:22,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711810982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:22,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:22,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:22,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888084388] [2024-11-28 05:16:22,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:22,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:22,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:22,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:22,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:22,321 INFO L87 Difference]: Start difference. First operand 40024 states and 42196 transitions. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:24,836 INFO L93 Difference]: Finished difference Result 87636 states and 92794 transitions. [2024-11-28 05:16:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 1162 [2024-11-28 05:16:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:24,879 INFO L225 Difference]: With dead ends: 87636 [2024-11-28 05:16:24,879 INFO L226 Difference]: Without dead ends: 47614 [2024-11-28 05:16:24,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:24,906 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 672 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:24,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 966 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:16:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47614 states. [2024-11-28 05:16:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47614 to 45544. [2024-11-28 05:16:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45544 states, 45543 states have (on average 1.0533561688953297) internal successors, (47973), 45543 states have internal predecessors, (47973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45544 states to 45544 states and 47973 transitions. [2024-11-28 05:16:25,479 INFO L78 Accepts]: Start accepts. Automaton has 45544 states and 47973 transitions. Word has length 1162 [2024-11-28 05:16:25,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:25,480 INFO L471 AbstractCegarLoop]: Abstraction has 45544 states and 47973 transitions. [2024-11-28 05:16:25,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 45544 states and 47973 transitions. [2024-11-28 05:16:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1211 [2024-11-28 05:16:25,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:25,523 INFO L218 NwaCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:25,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:16:25,523 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:25,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1870015960, now seen corresponding path program 1 times [2024-11-28 05:16:25,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:25,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031380457] [2024-11-28 05:16:25,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 365 proven. 1002 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:16:29,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:29,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031380457] [2024-11-28 05:16:29,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031380457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:29,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162418234] [2024-11-28 05:16:29,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:29,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:29,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:29,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:16:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:29,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:16:29,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2024-11-28 05:16:29,528 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:16:29,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162418234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:29,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:16:29,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-28 05:16:29,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674023475] [2024-11-28 05:16:29,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:29,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:29,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:29,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:29,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:16:29,532 INFO L87 Difference]: Start difference. First operand 45544 states and 47973 transitions. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:31,781 INFO L93 Difference]: Finished difference Result 89016 states and 93840 transitions. [2024-11-28 05:16:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:31,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 1210 [2024-11-28 05:16:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:31,913 INFO L225 Difference]: With dead ends: 89016 [2024-11-28 05:16:31,913 INFO L226 Difference]: Without dead ends: 44164 [2024-11-28 05:16:31,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1218 GetRequests, 1210 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:16:31,935 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 736 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:31,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 888 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 05:16:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44164 states. [2024-11-28 05:16:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44164 to 42094. [2024-11-28 05:16:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42094 states, 42093 states have (on average 1.0394364858765115) internal successors, (43753), 42093 states have internal predecessors, (43753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:32,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42094 states to 42094 states and 43753 transitions. [2024-11-28 05:16:32,461 INFO L78 Accepts]: Start accepts. Automaton has 42094 states and 43753 transitions. Word has length 1210 [2024-11-28 05:16:32,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:32,462 INFO L471 AbstractCegarLoop]: Abstraction has 42094 states and 43753 transitions. [2024-11-28 05:16:32,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 42094 states and 43753 transitions. [2024-11-28 05:16:32,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1394 [2024-11-28 05:16:32,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:32,489 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:32,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:16:32,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:32,690 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:32,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:32,691 INFO L85 PathProgramCache]: Analyzing trace with hash -876385504, now seen corresponding path program 1 times [2024-11-28 05:16:32,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:32,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391134101] [2024-11-28 05:16:32,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2104 backedges. 1360 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2024-11-28 05:16:34,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391134101] [2024-11-28 05:16:34,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391134101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:34,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:34,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:34,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465929054] [2024-11-28 05:16:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:34,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:34,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:34,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:34,133 INFO L87 Difference]: Start difference. First operand 42094 states and 43753 transitions. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:36,791 INFO L93 Difference]: Finished difference Result 82806 states and 86103 transitions. [2024-11-28 05:16:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:36,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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 1393 [2024-11-28 05:16:36,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:36,829 INFO L225 Difference]: With dead ends: 82806 [2024-11-28 05:16:36,829 INFO L226 Difference]: Without dead ends: 41404 [2024-11-28 05:16:36,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:36,849 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 461 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:36,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 953 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 05:16:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41404 states. [2024-11-28 05:16:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41404 to 41404. [2024-11-28 05:16:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41404 states, 41403 states have (on average 1.0309397869719585) internal successors, (42684), 41403 states have internal predecessors, (42684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41404 states to 41404 states and 42684 transitions. [2024-11-28 05:16:37,420 INFO L78 Accepts]: Start accepts. Automaton has 41404 states and 42684 transitions. Word has length 1393 [2024-11-28 05:16:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:37,421 INFO L471 AbstractCegarLoop]: Abstraction has 41404 states and 42684 transitions. [2024-11-28 05:16:37,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 41404 states and 42684 transitions. [2024-11-28 05:16:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1423 [2024-11-28 05:16:37,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:37,462 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:37,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:16:37,462 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:37,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash -329953906, now seen corresponding path program 1 times [2024-11-28 05:16:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:37,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893700426] [2024-11-28 05:16:37,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:37,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2348 backedges. 1569 proven. 0 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2024-11-28 05:16:39,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:39,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893700426] [2024-11-28 05:16:39,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893700426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:39,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:39,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:39,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846157047] [2024-11-28 05:16:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:39,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:16:39,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:39,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:16:39,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:39,367 INFO L87 Difference]: Start difference. First operand 41404 states and 42684 transitions. Second operand has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:42,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:42,994 INFO L93 Difference]: Finished difference Result 86946 states and 89770 transitions. [2024-11-28 05:16:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:16:42,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 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 1422 [2024-11-28 05:16:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:43,038 INFO L225 Difference]: With dead ends: 86946 [2024-11-28 05:16:43,039 INFO L226 Difference]: Without dead ends: 46234 [2024-11-28 05:16:43,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:16:43,058 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 975 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2677 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 2677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:43,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 103 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 2677 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 05:16:43,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46234 states. [2024-11-28 05:16:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46234 to 46234. [2024-11-28 05:16:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46234 states, 46233 states have (on average 1.0307572513139964) internal successors, (47655), 46233 states have internal predecessors, (47655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46234 states to 46234 states and 47655 transitions. [2024-11-28 05:16:43,556 INFO L78 Accepts]: Start accepts. Automaton has 46234 states and 47655 transitions. Word has length 1422 [2024-11-28 05:16:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:43,557 INFO L471 AbstractCegarLoop]: Abstraction has 46234 states and 47655 transitions. [2024-11-28 05:16:43,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 46234 states and 47655 transitions. [2024-11-28 05:16:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2024-11-28 05:16:43,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:43,578 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:43,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:16:43,578 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:43,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -902546518, now seen corresponding path program 1 times [2024-11-28 05:16:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:43,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787583819] [2024-11-28 05:16:43,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:43,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2661 backedges. 1768 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2024-11-28 05:16:44,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:44,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787583819] [2024-11-28 05:16:44,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787583819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:44,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:44,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:44,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007407603] [2024-11-28 05:16:44,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:44,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:44,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:44,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:44,528 INFO L87 Difference]: Start difference. First operand 46234 states and 47655 transitions. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:46,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:46,728 INFO L93 Difference]: Finished difference Result 91086 states and 93908 transitions. [2024-11-28 05:16:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:46,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 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 1437 [2024-11-28 05:16:46,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:46,765 INFO L225 Difference]: With dead ends: 91086 [2024-11-28 05:16:46,765 INFO L226 Difference]: Without dead ends: 45544 [2024-11-28 05:16:46,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:46,783 INFO L435 NwaCegarLoop]: 922 mSDtfsCounter, 555 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:46,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 928 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:16:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45544 states. [2024-11-28 05:16:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45544 to 44854. [2024-11-28 05:16:47,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44854 states, 44853 states have (on average 1.0266648830624485) internal successors, (46049), 44853 states have internal predecessors, (46049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:47,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44854 states to 44854 states and 46049 transitions. [2024-11-28 05:16:47,420 INFO L78 Accepts]: Start accepts. Automaton has 44854 states and 46049 transitions. Word has length 1437 [2024-11-28 05:16:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:47,421 INFO L471 AbstractCegarLoop]: Abstraction has 44854 states and 46049 transitions. [2024-11-28 05:16:47,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:47,421 INFO L276 IsEmpty]: Start isEmpty. Operand 44854 states and 46049 transitions. [2024-11-28 05:16:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1502 [2024-11-28 05:16:47,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:47,471 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:47,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:16:47,471 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:47,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1308148735, now seen corresponding path program 1 times [2024-11-28 05:16:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:47,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593722551] [2024-11-28 05:16:47,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:47,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2877 backedges. 920 proven. 0 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-11-28 05:16:50,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593722551] [2024-11-28 05:16:50,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593722551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:50,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:50,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:50,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713768796] [2024-11-28 05:16:50,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:50,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:50,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:50,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:50,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:50,120 INFO L87 Difference]: Start difference. First operand 44854 states and 46049 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:52,575 INFO L93 Difference]: Finished difference Result 97296 states and 100083 transitions. [2024-11-28 05:16:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:52,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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 1501 [2024-11-28 05:16:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:52,628 INFO L225 Difference]: With dead ends: 97296 [2024-11-28 05:16:52,628 INFO L226 Difference]: Without dead ends: 51754 [2024-11-28 05:16:52,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:52,654 INFO L435 NwaCegarLoop]: 767 mSDtfsCounter, 580 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:52,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 773 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:16:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51754 states. [2024-11-28 05:16:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51754 to 51064. [2024-11-28 05:16:53,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51064 states, 51063 states have (on average 1.0268296026477097) internal successors, (52433), 51063 states have internal predecessors, (52433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51064 states to 51064 states and 52433 transitions. [2024-11-28 05:16:53,314 INFO L78 Accepts]: Start accepts. Automaton has 51064 states and 52433 transitions. Word has length 1501 [2024-11-28 05:16:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:53,315 INFO L471 AbstractCegarLoop]: Abstraction has 51064 states and 52433 transitions. [2024-11-28 05:16:53,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 51064 states and 52433 transitions. [2024-11-28 05:16:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1503 [2024-11-28 05:16:53,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:53,336 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:53,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:16:53,336 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:53,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash 464942170, now seen corresponding path program 1 times [2024-11-28 05:16:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:53,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054095454] [2024-11-28 05:16:53,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:53,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1505 proven. 0 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2024-11-28 05:16:54,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:54,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054095454] [2024-11-28 05:16:54,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054095454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:54,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:54,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:54,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627634926] [2024-11-28 05:16:54,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:54,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:54,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:54,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:54,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:54,707 INFO L87 Difference]: Start difference. First operand 51064 states and 52433 transitions. Second operand has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:57,071 INFO L93 Difference]: Finished difference Result 99366 states and 102064 transitions. [2024-11-28 05:16:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:57,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 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 1502 [2024-11-28 05:16:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:57,118 INFO L225 Difference]: With dead ends: 99366 [2024-11-28 05:16:57,118 INFO L226 Difference]: Without dead ends: 48994 [2024-11-28 05:16:57,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:57,144 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 562 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:57,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 917 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 05:16:57,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48994 states. [2024-11-28 05:16:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48994 to 48994. [2024-11-28 05:16:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48994 states, 48993 states have (on average 1.0245137060396383) internal successors, (50194), 48993 states have internal predecessors, (50194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48994 states to 48994 states and 50194 transitions. [2024-11-28 05:16:57,750 INFO L78 Accepts]: Start accepts. Automaton has 48994 states and 50194 transitions. Word has length 1502 [2024-11-28 05:16:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:57,752 INFO L471 AbstractCegarLoop]: Abstraction has 48994 states and 50194 transitions. [2024-11-28 05:16:57,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 48994 states and 50194 transitions. [2024-11-28 05:16:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1564 [2024-11-28 05:16:57,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:57,820 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:57,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:16:57,820 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:57,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:57,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1703565110, now seen corresponding path program 1 times [2024-11-28 05:16:57,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:57,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948515244] [2024-11-28 05:16:57,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:57,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 2126 proven. 0 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2024-11-28 05:16:59,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948515244] [2024-11-28 05:16:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948515244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:59,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:59,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:16:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493944740] [2024-11-28 05:16:59,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:59,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:16:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:59,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:59,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:59,272 INFO L87 Difference]: Start difference. First operand 48994 states and 50194 transitions. Second operand has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:01,873 INFO L93 Difference]: Finished difference Result 122826 states and 125950 transitions. [2024-11-28 05:17:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:01,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 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 1563 [2024-11-28 05:17:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:01,933 INFO L225 Difference]: With dead ends: 122826 [2024-11-28 05:17:01,933 INFO L226 Difference]: Without dead ends: 74524 [2024-11-28 05:17:01,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:01,960 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 548 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:01,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 887 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:17:02,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74524 states. [2024-11-28 05:17:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74524 to 73834. [2024-11-28 05:17:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73834 states, 73833 states have (on average 1.021507997778771) internal successors, (75421), 73833 states have internal predecessors, (75421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73834 states to 73834 states and 75421 transitions. [2024-11-28 05:17:02,896 INFO L78 Accepts]: Start accepts. Automaton has 73834 states and 75421 transitions. Word has length 1563 [2024-11-28 05:17:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:02,896 INFO L471 AbstractCegarLoop]: Abstraction has 73834 states and 75421 transitions. [2024-11-28 05:17:02,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 73834 states and 75421 transitions. [2024-11-28 05:17:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1579 [2024-11-28 05:17:02,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:02,940 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:02,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:17:02,940 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:02,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1992680498, now seen corresponding path program 1 times [2024-11-28 05:17:02,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:02,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096305525] [2024-11-28 05:17:02,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:02,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3024 backedges. 907 proven. 0 refuted. 0 times theorem prover too weak. 2117 trivial. 0 not checked. [2024-11-28 05:17:05,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:05,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096305525] [2024-11-28 05:17:05,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096305525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:05,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:05,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314629247] [2024-11-28 05:17:05,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:05,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:05,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:05,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:05,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:05,126 INFO L87 Difference]: Start difference. First operand 73834 states and 75421 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:07,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:07,587 INFO L93 Difference]: Finished difference Result 157326 states and 160836 transitions. [2024-11-28 05:17:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:07,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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 1578 [2024-11-28 05:17:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:07,648 INFO L225 Difference]: With dead ends: 157326 [2024-11-28 05:17:07,648 INFO L226 Difference]: Without dead ends: 84184 [2024-11-28 05:17:07,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:07,676 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 551 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:07,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 263 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 05:17:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84184 states. [2024-11-28 05:17:08,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84184 to 82114. [2024-11-28 05:17:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82114 states, 82113 states have (on average 1.0202769354426218) internal successors, (83778), 82113 states have internal predecessors, (83778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82114 states to 82114 states and 83778 transitions. [2024-11-28 05:17:08,703 INFO L78 Accepts]: Start accepts. Automaton has 82114 states and 83778 transitions. Word has length 1578 [2024-11-28 05:17:08,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:08,705 INFO L471 AbstractCegarLoop]: Abstraction has 82114 states and 83778 transitions. [2024-11-28 05:17:08,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:08,705 INFO L276 IsEmpty]: Start isEmpty. Operand 82114 states and 83778 transitions. [2024-11-28 05:17:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1608 [2024-11-28 05:17:08,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:08,736 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-28 05:17:08,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:17:08,736 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:08,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:08,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1602330592, now seen corresponding path program 1 times [2024-11-28 05:17:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:08,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682120775] [2024-11-28 05:17:08,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 1803 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2024-11-28 05:17:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682120775] [2024-11-28 05:17:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682120775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:10,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:10,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198240376] [2024-11-28 05:17:10,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:10,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:10,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:10,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:10,525 INFO L87 Difference]: Start difference. First operand 82114 states and 83778 transitions. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:13,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:13,273 INFO L93 Difference]: Finished difference Result 171126 states and 174671 transitions. [2024-11-28 05:17:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:13,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 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 1607 [2024-11-28 05:17:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:13,356 INFO L225 Difference]: With dead ends: 171126 [2024-11-28 05:17:13,356 INFO L226 Difference]: Without dead ends: 89704 [2024-11-28 05:17:13,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:13,385 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 619 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:13,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 189 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:17:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89704 states. [2024-11-28 05:17:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89704 to 88324. [2024-11-28 05:17:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88324 states, 88323 states have (on average 1.0183304462031408) internal successors, (89942), 88323 states have internal predecessors, (89942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88324 states to 88324 states and 89942 transitions. [2024-11-28 05:17:14,292 INFO L78 Accepts]: Start accepts. Automaton has 88324 states and 89942 transitions. Word has length 1607 [2024-11-28 05:17:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:14,293 INFO L471 AbstractCegarLoop]: Abstraction has 88324 states and 89942 transitions. [2024-11-28 05:17:14,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 88324 states and 89942 transitions. [2024-11-28 05:17:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1754 [2024-11-28 05:17:14,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:14,322 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:14,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:17:14,323 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:14,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -48846776, now seen corresponding path program 1 times [2024-11-28 05:17:14,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:14,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716782253] [2024-11-28 05:17:14,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:14,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3489 backedges. 2521 proven. 351 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-28 05:17:18,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:18,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716782253] [2024-11-28 05:17:18,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716782253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:18,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606443752] [2024-11-28 05:17:18,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:18,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:18,779 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:18,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:17:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:19,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:17:19,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 3489 backedges. 2437 proven. 0 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2024-11-28 05:17:21,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:17:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606443752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:21,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:17:21,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 05:17:21,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891751207] [2024-11-28 05:17:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:21,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:17:21,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:21,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:17:21,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:17:21,312 INFO L87 Difference]: Start difference. First operand 88324 states and 89942 transitions. Second operand has 4 states, 4 states have (on average 255.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:26,050 INFO L93 Difference]: Finished difference Result 191138 states and 194650 transitions. [2024-11-28 05:17:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:17:26,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 255.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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 1753 [2024-11-28 05:17:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:26,140 INFO L225 Difference]: With dead ends: 191138 [2024-11-28 05:17:26,140 INFO L226 Difference]: Without dead ends: 102816 [2024-11-28 05:17:26,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1759 GetRequests, 1751 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:17:26,181 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 791 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 3624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:26,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 94 Invalid, 3624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 05:17:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102816 states. [2024-11-28 05:17:27,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102816 to 100054. [2024-11-28 05:17:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100054 states, 100053 states have (on average 1.0177505921861414) internal successors, (101829), 100053 states have internal predecessors, (101829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100054 states to 100054 states and 101829 transitions. [2024-11-28 05:17:27,797 INFO L78 Accepts]: Start accepts. Automaton has 100054 states and 101829 transitions. Word has length 1753 [2024-11-28 05:17:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:27,797 INFO L471 AbstractCegarLoop]: Abstraction has 100054 states and 101829 transitions. [2024-11-28 05:17:27,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 255.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 100054 states and 101829 transitions. [2024-11-28 05:17:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1799 [2024-11-28 05:17:27,830 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:27,830 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:27,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:17:28,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:28,031 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:28,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash 2073457112, now seen corresponding path program 1 times [2024-11-28 05:17:28,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:28,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117806496] [2024-11-28 05:17:28,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3854 backedges. 2379 proven. 0 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2024-11-28 05:17:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117806496] [2024-11-28 05:17:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117806496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:29,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:17:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010525325] [2024-11-28 05:17:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:29,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:29,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:29,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:29,465 INFO L87 Difference]: Start difference. First operand 100054 states and 101829 transitions. Second operand has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:32,061 INFO L93 Difference]: Finished difference Result 207698 states and 211356 transitions. [2024-11-28 05:17:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:17:32,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 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 1798 [2024-11-28 05:17:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:32,154 INFO L225 Difference]: With dead ends: 207698 [2024-11-28 05:17:32,154 INFO L226 Difference]: Without dead ends: 108336 [2024-11-28 05:17:32,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:17:32,201 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 476 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:32,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 173 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 05:17:32,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108336 states. [2024-11-28 05:17:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108336 to 101434. [2024-11-28 05:17:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101434 states, 101433 states have (on average 1.0175189533978093) internal successors, (103210), 101433 states have internal predecessors, (103210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101434 states to 101434 states and 103210 transitions. [2024-11-28 05:17:33,371 INFO L78 Accepts]: Start accepts. Automaton has 101434 states and 103210 transitions. Word has length 1798 [2024-11-28 05:17:33,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:33,371 INFO L471 AbstractCegarLoop]: Abstraction has 101434 states and 103210 transitions. [2024-11-28 05:17:33,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.0) internal successors, (918), 3 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:17:33,372 INFO L276 IsEmpty]: Start isEmpty. Operand 101434 states and 103210 transitions. [2024-11-28 05:17:33,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1857 [2024-11-28 05:17:33,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:33,406 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:33,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:17:33,407 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:33,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:33,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1492211591, now seen corresponding path program 1 times [2024-11-28 05:17:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454612339] [2024-11-28 05:17:33,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 1080 proven. 1475 refuted. 0 times theorem prover too weak. 1362 trivial. 0 not checked. [2024-11-28 05:17:39,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:39,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454612339] [2024-11-28 05:17:39,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454612339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:39,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913828150] [2024-11-28 05:17:39,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:17:39,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:17:39,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:17:39,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1563eb9-bfed-48e8-b3bf-53b8d7c6abb0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:17:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:39,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:17:39,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:17:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 981 proven. 21 refuted. 0 times theorem prover too weak. 2915 trivial. 0 not checked. [2024-11-28 05:17:40,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 3771 trivial. 0 not checked. [2024-11-28 05:17:40,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913828150] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:17:40,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:17:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 9 [2024-11-28 05:17:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124965345] [2024-11-28 05:17:40,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:17:40,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:40,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:17:40,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:17:40,295 INFO L87 Difference]: Start difference. First operand 101434 states and 103210 transitions. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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)