./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.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_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/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_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/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_fb41992a-1450-440d-87da-667736bbc9fb/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 db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:14:52,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:14:52,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:14:52,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:14:52,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:14:52,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:14:52,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:14:52,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:14:52,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:14:52,965 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:14:52,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:14:52,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:14:52,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:14:52,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:14:52,966 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:14:52,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:14:52,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:14:52,966 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:14:52,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:14:52,967 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:14:52,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:14:52,968 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:14:52,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:14:52,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:14:52,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:14:52,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:14:52,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:14:52,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:14:52,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:14:52,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:14:52,970 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_fb41992a-1450-440d-87da-667736bbc9fb/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 -> db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 [2024-11-27 23:14:53,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:14:53,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:14:53,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:14:53,301 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:14:53,301 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:14:53,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-27 23:14:56,460 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/data/33283ca50/b8597aea0a5044e4a2573bb5cdeafe59/FLAGcfe5db51c [2024-11-27 23:14:57,532 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:14:57,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-27 23:14:57,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/data/33283ca50/b8597aea0a5044e4a2573bb5cdeafe59/FLAGcfe5db51c [2024-11-27 23:14:57,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/data/33283ca50/b8597aea0a5044e4a2573bb5cdeafe59 [2024-11-27 23:14:57,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:14:57,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:14:57,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:14:57,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:14:57,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:14:57,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:14:57" (1/1) ... [2024-11-27 23:14:57,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea8cf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:14:57, skipping insertion in model container [2024-11-27 23:14:57,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:14:57" (1/1) ... [2024-11-27 23:14:57,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:00,065 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_fb41992a-1450-440d-87da-667736bbc9fb/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c[381679,381692] [2024-11-27 23:15:00,117 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_fb41992a-1450-440d-87da-667736bbc9fb/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c[383339,383352] [2024-11-27 23:15:00,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:00,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:01,771 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_fb41992a-1450-440d-87da-667736bbc9fb/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c[381679,381692] [2024-11-27 23:15:01,775 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_fb41992a-1450-440d-87da-667736bbc9fb/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c[383339,383352] [2024-11-27 23:15:01,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:01,890 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:01,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01 WrapperNode [2024-11-27 23:15:01,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:01,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:01,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:01,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:01,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,455 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12981 [2024-11-27 23:15:02,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:02,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:02,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:02,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:02,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,744 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:15:02,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:02,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:03,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:03,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:03,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:03,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:03,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:03,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:03,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:03,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (1/1) ... [2024-11-27 23:15:03,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:03,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:03,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb41992a-1450-440d-87da-667736bbc9fb/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-27 23:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-27 23:15:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-27 23:15:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-27 23:15:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-27 23:15:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-27 23:15:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-27 23:15:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-27 23:15:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-27 23:15:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-27 23:15:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-27 23:15:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-27 23:15:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:15:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:03,466 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:03,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:15,813 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-27 23:15:15,814 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:15,908 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:15,911 INFO L312 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-27 23:15:15,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:15 BoogieIcfgContainer [2024-11-27 23:15:15,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:15,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:15:15,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:15:15,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:15:15,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:14:57" (1/3) ... [2024-11-27 23:15:15,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701fb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:15, skipping insertion in model container [2024-11-27 23:15:15,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:01" (2/3) ... [2024-11-27 23:15:15,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701fb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:15:15, skipping insertion in model container [2024-11-27 23:15:15,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:15" (3/3) ... [2024-11-27 23:15:15,929 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-1.c [2024-11-27 23:15:15,949 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:15:15,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label43+token_ring.08.cil-1.c that has 7 procedures, 2463 locations, 1 initial locations, 12 loop locations, and 2 error locations. [2024-11-27 23:15:16,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:15:16,130 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;@6d17fc11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:15:16,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-27 23:15:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 2463 states, 2433 states have (on average 1.8483353884093712) internal successors, (4497), 2435 states have internal predecessors, (4497), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 23:15:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:16,177 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:16,178 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:16,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:16,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:16,186 INFO L85 PathProgramCache]: Analyzing trace with hash -910938023, now seen corresponding path program 1 times [2024-11-27 23:15:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644298722] [2024-11-27 23:15:16,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:16,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:16,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644298722] [2024-11-27 23:15:16,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644298722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:16,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:16,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:15:16,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448620799] [2024-11-27 23:15:16,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:16,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:15:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:16,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:16,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:16,807 INFO L87 Difference]: Start difference. First operand has 2463 states, 2433 states have (on average 1.8483353884093712) internal successors, (4497), 2435 states have internal predecessors, (4497), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:17,132 INFO L93 Difference]: Finished difference Result 4920 states and 9071 transitions. [2024-11-27 23:15:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:17,164 INFO L225 Difference]: With dead ends: 4920 [2024-11-27 23:15:17,164 INFO L226 Difference]: Without dead ends: 2396 [2024-11-27 23:15:17,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:17,180 INFO L435 NwaCegarLoop]: 4454 mSDtfsCounter, 427 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 8476 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:17,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 8476 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:15:17,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2024-11-27 23:15:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2024-11-27 23:15:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 2366 states have (on average 1.835164835164835) internal successors, (4342), 2368 states have internal predecessors, (4342), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 23:15:17,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 4386 transitions. [2024-11-27 23:15:17,397 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 4386 transitions. Word has length 132 [2024-11-27 23:15:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:17,401 INFO L471 AbstractCegarLoop]: Abstraction has 2396 states and 4386 transitions. [2024-11-27 23:15:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 4386 transitions. [2024-11-27 23:15:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:17,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:17,411 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:17,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:15:17,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:17,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1772771625, now seen corresponding path program 1 times [2024-11-27 23:15:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:17,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916789769] [2024-11-27 23:15:17,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:17,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:17,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916789769] [2024-11-27 23:15:17,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916789769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:17,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:17,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:17,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486381481] [2024-11-27 23:15:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:17,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:17,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:17,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:17,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:17,912 INFO L87 Difference]: Start difference. First operand 2396 states and 4386 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:18,853 INFO L93 Difference]: Finished difference Result 2946 states and 5256 transitions. [2024-11-27 23:15:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:15:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:18,874 INFO L225 Difference]: With dead ends: 2946 [2024-11-27 23:15:18,874 INFO L226 Difference]: Without dead ends: 2687 [2024-11-27 23:15:18,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:18,881 INFO L435 NwaCegarLoop]: 4289 mSDtfsCounter, 4766 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 13041 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:18,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 13041 Invalid, 516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:15:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2024-11-27 23:15:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2666. [2024-11-27 23:15:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2612 states have (on average 1.8116385911179174) internal successors, (4732), 2615 states have internal predecessors, (4732), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-27 23:15:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 4811 transitions. [2024-11-27 23:15:18,997 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 4811 transitions. Word has length 132 [2024-11-27 23:15:18,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:18,998 INFO L471 AbstractCegarLoop]: Abstraction has 2666 states and 4811 transitions. [2024-11-27 23:15:18,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:19,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 4811 transitions. [2024-11-27 23:15:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:19,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:19,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:19,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:15:19,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:19,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash -889632165, now seen corresponding path program 1 times [2024-11-27 23:15:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:19,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192981544] [2024-11-27 23:15:19,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:19,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:19,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:19,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192981544] [2024-11-27 23:15:19,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192981544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:19,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:19,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:19,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309317810] [2024-11-27 23:15:19,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:19,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:19,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:19,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:19,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:19,375 INFO L87 Difference]: Start difference. First operand 2666 states and 4811 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:20,646 INFO L93 Difference]: Finished difference Result 3539 states and 6203 transitions. [2024-11-27 23:15:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:20,666 INFO L225 Difference]: With dead ends: 3539 [2024-11-27 23:15:20,666 INFO L226 Difference]: Without dead ends: 3010 [2024-11-27 23:15:20,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:20,674 INFO L435 NwaCegarLoop]: 4512 mSDtfsCounter, 4768 mSDsluCounter, 13554 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4784 SdHoareTripleChecker+Valid, 18066 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:20,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4784 Valid, 18066 Invalid, 846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:15:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2024-11-27 23:15:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2917. [2024-11-27 23:15:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2839 states have (on average 1.790771398379711) internal successors, (5084), 2843 states have internal predecessors, (5084), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-27 23:15:20,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 5200 transitions. [2024-11-27 23:15:20,832 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 5200 transitions. Word has length 132 [2024-11-27 23:15:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:20,833 INFO L471 AbstractCegarLoop]: Abstraction has 2917 states and 5200 transitions. [2024-11-27 23:15:20,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 5200 transitions. [2024-11-27 23:15:20,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:20,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:20,838 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:20,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:15:20,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:20,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash -418275815, now seen corresponding path program 1 times [2024-11-27 23:15:20,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889588819] [2024-11-27 23:15:20,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:20,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:21,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:21,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889588819] [2024-11-27 23:15:21,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889588819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:21,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:21,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707726645] [2024-11-27 23:15:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:21,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:21,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:21,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:21,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:21,277 INFO L87 Difference]: Start difference. First operand 2917 states and 5200 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:22,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:22,306 INFO L93 Difference]: Finished difference Result 4338 states and 7461 transitions. [2024-11-27 23:15:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:22,330 INFO L225 Difference]: With dead ends: 4338 [2024-11-27 23:15:22,330 INFO L226 Difference]: Without dead ends: 3558 [2024-11-27 23:15:22,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:22,336 INFO L435 NwaCegarLoop]: 4315 mSDtfsCounter, 4787 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 17403 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:22,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4803 Valid, 17403 Invalid, 715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:15:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2024-11-27 23:15:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3452. [2024-11-27 23:15:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3324 states have (on average 1.7590252707581226) internal successors, (5847), 3332 states have internal predecessors, (5847), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-27 23:15:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6043 transitions. [2024-11-27 23:15:22,508 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6043 transitions. Word has length 132 [2024-11-27 23:15:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:22,508 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 6043 transitions. [2024-11-27 23:15:22,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6043 transitions. [2024-11-27 23:15:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:22,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:22,511 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:22,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:15:22,512 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:22,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2065638757, now seen corresponding path program 1 times [2024-11-27 23:15:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746249447] [2024-11-27 23:15:22,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:22,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:22,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:22,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746249447] [2024-11-27 23:15:22,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746249447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:22,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:22,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:22,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907076645] [2024-11-27 23:15:22,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:22,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:22,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:22,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:22,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:22,743 INFO L87 Difference]: Start difference. First operand 3452 states and 6043 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:23,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:23,869 INFO L93 Difference]: Finished difference Result 6063 states and 10234 transitions. [2024-11-27 23:15:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:23,894 INFO L225 Difference]: With dead ends: 6063 [2024-11-27 23:15:23,895 INFO L226 Difference]: Without dead ends: 4748 [2024-11-27 23:15:23,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:23,901 INFO L435 NwaCegarLoop]: 4505 mSDtfsCounter, 4758 mSDsluCounter, 13533 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 18038 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:23,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 18038 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:15:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2024-11-27 23:15:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4615. [2024-11-27 23:15:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4615 states, 4381 states have (on average 1.7208399908696645) internal successors, (7539), 4403 states have internal predecessors, (7539), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-27 23:15:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4615 states to 4615 states and 7919 transitions. [2024-11-27 23:15:24,109 INFO L78 Accepts]: Start accepts. Automaton has 4615 states and 7919 transitions. Word has length 132 [2024-11-27 23:15:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:24,109 INFO L471 AbstractCegarLoop]: Abstraction has 4615 states and 7919 transitions. [2024-11-27 23:15:24,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:24,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4615 states and 7919 transitions. [2024-11-27 23:15:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:24,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:24,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:24,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:15:24,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:24,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash 97977817, now seen corresponding path program 1 times [2024-11-27 23:15:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037878553] [2024-11-27 23:15:24,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:24,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037878553] [2024-11-27 23:15:24,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037878553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:24,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:24,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:24,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328840840] [2024-11-27 23:15:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:24,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:24,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:24,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:24,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:24,329 INFO L87 Difference]: Start difference. First operand 4615 states and 7919 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:25,354 INFO L93 Difference]: Finished difference Result 9828 states and 16452 transitions. [2024-11-27 23:15:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:25,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:25,406 INFO L225 Difference]: With dead ends: 9828 [2024-11-27 23:15:25,406 INFO L226 Difference]: Without dead ends: 7350 [2024-11-27 23:15:25,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:25,419 INFO L435 NwaCegarLoop]: 4498 mSDtfsCounter, 4750 mSDsluCounter, 13514 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4766 SdHoareTripleChecker+Valid, 18012 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:25,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4766 Valid, 18012 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:15:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7350 states. [2024-11-27 23:15:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7350 to 7175. [2024-11-27 23:15:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 6711 states have (on average 1.688720011920727) internal successors, (11333), 6779 states have internal predecessors, (11333), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-27 23:15:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 12177 transitions. [2024-11-27 23:15:25,909 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 12177 transitions. Word has length 132 [2024-11-27 23:15:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:25,909 INFO L471 AbstractCegarLoop]: Abstraction has 7175 states and 12177 transitions. [2024-11-27 23:15:25,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:25,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 12177 transitions. [2024-11-27 23:15:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:25,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:25,915 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:25,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:15:25,915 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:25,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:25,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1875187561, now seen corresponding path program 1 times [2024-11-27 23:15:25,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:25,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736951520] [2024-11-27 23:15:25,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:26,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:26,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736951520] [2024-11-27 23:15:26,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736951520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:26,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:26,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:26,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178253919] [2024-11-27 23:15:26,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:26,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:26,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:26,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:26,109 INFO L87 Difference]: Start difference. First operand 7175 states and 12177 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:27,322 INFO L93 Difference]: Finished difference Result 18276 states and 30976 transitions. [2024-11-27 23:15:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:27,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:27,415 INFO L225 Difference]: With dead ends: 18276 [2024-11-27 23:15:27,415 INFO L226 Difference]: Without dead ends: 13238 [2024-11-27 23:15:27,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:27,441 INFO L435 NwaCegarLoop]: 4495 mSDtfsCounter, 4745 mSDsluCounter, 13505 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 18000 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:27,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 18000 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:15:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13238 states. [2024-11-27 23:15:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13238 to 12970. [2024-11-27 23:15:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12970 states, 11992 states have (on average 1.676200800533689) internal successors, (20101), 12206 states have internal predecessors, (20101), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-27 23:15:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12970 states to 12970 states and 22257 transitions. [2024-11-27 23:15:28,241 INFO L78 Accepts]: Start accepts. Automaton has 12970 states and 22257 transitions. Word has length 132 [2024-11-27 23:15:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:28,242 INFO L471 AbstractCegarLoop]: Abstraction has 12970 states and 22257 transitions. [2024-11-27 23:15:28,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 12970 states and 22257 transitions. [2024-11-27 23:15:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:28,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:28,252 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:28,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:15:28,253 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash 277919257, now seen corresponding path program 1 times [2024-11-27 23:15:28,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:28,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101920603] [2024-11-27 23:15:28,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:28,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:28,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101920603] [2024-11-27 23:15:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101920603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:28,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:28,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:15:28,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671968715] [2024-11-27 23:15:28,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:28,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:15:28,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:28,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:15:28,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:15:28,468 INFO L87 Difference]: Start difference. First operand 12970 states and 22257 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:29,564 INFO L93 Difference]: Finished difference Result 26743 states and 46767 transitions. [2024-11-27 23:15:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:15:29,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:29,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:29,641 INFO L225 Difference]: With dead ends: 26743 [2024-11-27 23:15:29,641 INFO L226 Difference]: Without dead ends: 15910 [2024-11-27 23:15:29,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:29,678 INFO L435 NwaCegarLoop]: 4266 mSDtfsCounter, 4526 mSDsluCounter, 8417 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 12683 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:29,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 12683 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:15:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15910 states. [2024-11-27 23:15:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15910 to 12970. [2024-11-27 23:15:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12970 states, 11992 states have (on average 1.6734489659773182) internal successors, (20068), 12206 states have internal predecessors, (20068), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-27 23:15:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12970 states to 12970 states and 22224 transitions. [2024-11-27 23:15:30,510 INFO L78 Accepts]: Start accepts. Automaton has 12970 states and 22224 transitions. Word has length 132 [2024-11-27 23:15:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:30,510 INFO L471 AbstractCegarLoop]: Abstraction has 12970 states and 22224 transitions. [2024-11-27 23:15:30,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 12970 states and 22224 transitions. [2024-11-27 23:15:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:30,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:30,521 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:30,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:15:30,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:30,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash -345362345, now seen corresponding path program 1 times [2024-11-27 23:15:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690254222] [2024-11-27 23:15:30,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:30,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:30,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690254222] [2024-11-27 23:15:30,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690254222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:30,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:30,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:30,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28593280] [2024-11-27 23:15:30,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:30,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:30,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:30,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:30,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:30,737 INFO L87 Difference]: Start difference. First operand 12970 states and 22224 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:33,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:33,151 INFO L93 Difference]: Finished difference Result 37419 states and 65667 transitions. [2024-11-27 23:15:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:33,308 INFO L225 Difference]: With dead ends: 37419 [2024-11-27 23:15:33,308 INFO L226 Difference]: Without dead ends: 26586 [2024-11-27 23:15:33,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:33,356 INFO L435 NwaCegarLoop]: 4487 mSDtfsCounter, 4732 mSDsluCounter, 13482 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 17969 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:33,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 17969 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:15:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26586 states. [2024-11-27 23:15:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26586 to 26180. [2024-11-27 23:15:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26180 states, 24012 states have (on average 1.678743961352657) internal successors, (40310), 24680 states have internal predecessors, (40310), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-27 23:15:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26180 states to 26180 states and 46626 transitions. [2024-11-27 23:15:35,275 INFO L78 Accepts]: Start accepts. Automaton has 26180 states and 46626 transitions. Word has length 132 [2024-11-27 23:15:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:35,275 INFO L471 AbstractCegarLoop]: Abstraction has 26180 states and 46626 transitions. [2024-11-27 23:15:35,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 26180 states and 46626 transitions. [2024-11-27 23:15:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:35,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:35,289 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:35,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:15:35,290 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:35,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash -226920871, now seen corresponding path program 1 times [2024-11-27 23:15:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254915355] [2024-11-27 23:15:35,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:35,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:35,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254915355] [2024-11-27 23:15:35,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254915355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:35,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:35,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022143669] [2024-11-27 23:15:35,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:35,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:35,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:35,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:35,508 INFO L87 Difference]: Start difference. First operand 26180 states and 46626 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:38,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:38,225 INFO L93 Difference]: Finished difference Result 85855 states and 159284 transitions. [2024-11-27 23:15:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:38,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:38,544 INFO L225 Difference]: With dead ends: 85855 [2024-11-27 23:15:38,544 INFO L226 Difference]: Without dead ends: 61812 [2024-11-27 23:15:38,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:38,639 INFO L435 NwaCegarLoop]: 4482 mSDtfsCounter, 4981 mSDsluCounter, 13462 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 17944 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:38,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 17944 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:15:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61812 states. [2024-11-27 23:15:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61812 to 57025. [2024-11-27 23:15:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57025 states, 52055 states have (on average 1.698395927384497) internal successors, (88410), 54117 states have internal predecessors, (88410), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 2834 states have return successors, (18518), 2261 states have call predecessors, (18518), 2134 states have call successors, (18518) [2024-11-27 23:15:43,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57025 states to 57025 states and 109062 transitions. [2024-11-27 23:15:43,108 INFO L78 Accepts]: Start accepts. Automaton has 57025 states and 109062 transitions. Word has length 132 [2024-11-27 23:15:43,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:15:43,109 INFO L471 AbstractCegarLoop]: Abstraction has 57025 states and 109062 transitions. [2024-11-27 23:15:43,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 57025 states and 109062 transitions. [2024-11-27 23:15:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-27 23:15:43,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:15:43,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:43,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:15:43,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:15:43,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:43,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1162373143, now seen corresponding path program 1 times [2024-11-27 23:15:43,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:15:43,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575988527] [2024-11-27 23:15:43,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:43,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:15:43,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:15:43,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575988527] [2024-11-27 23:15:43,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575988527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:15:43,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:15:43,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:15:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932449806] [2024-11-27 23:15:43,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:15:43,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:15:43,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:15:43,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:15:43,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:15:43,342 INFO L87 Difference]: Start difference. First operand 57025 states and 109062 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 23:15:49,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:49,272 INFO L93 Difference]: Finished difference Result 194172 states and 397014 transitions. [2024-11-27 23:15:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:15:49,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 132 [2024-11-27 23:15:49,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:15:50,451 INFO L225 Difference]: With dead ends: 194172 [2024-11-27 23:15:50,451 INFO L226 Difference]: Without dead ends: 139284 [2024-11-27 23:15:50,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:15:50,676 INFO L435 NwaCegarLoop]: 4315 mSDtfsCounter, 4829 mSDsluCounter, 13054 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 17369 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:15:50,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 17369 Invalid, 946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:15:50,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139284 states.