./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.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_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/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_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/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_b043f964-45d6-4dc8-8fa9-68b9161c029a/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 74f9bd5bd4d02445cc8b51e0daba1f22f33c6c5b4db852fb1ac615d474112387 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:05:07,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:05:07,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:05:07,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:05:07,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:05:07,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:05:07,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:05:07,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:05:07,202 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:05:07,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:05:07,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:05:07,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:05:07,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:05:07,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:05:07,205 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:05:07,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:05:07,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:05:07,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:05:07,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:07,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:05:07,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:07,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:05:07,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:05:07,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:05:07,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:05:07,211 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:05:07,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:05:07,211 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_b043f964-45d6-4dc8-8fa9-68b9161c029a/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 -> 74f9bd5bd4d02445cc8b51e0daba1f22f33c6c5b4db852fb1ac615d474112387 [2024-11-28 04:05:07,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:05:07,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:05:07,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:05:07,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:05:07,628 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:05:07,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c [2024-11-28 04:05:10,741 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/data/85e38b389/f7b6716a973242fe96da944e87f2e89c/FLAGd951b0d04 [2024-11-28 04:05:11,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:05:11,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c [2024-11-28 04:05:11,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/data/85e38b389/f7b6716a973242fe96da944e87f2e89c/FLAGd951b0d04 [2024-11-28 04:05:11,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/data/85e38b389/f7b6716a973242fe96da944e87f2e89c [2024-11-28 04:05:11,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:05:11,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:05:11,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:11,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:05:11,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:05:11,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:11" (1/1) ... [2024-11-28 04:05:11,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497d486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:11, skipping insertion in model container [2024-11-28 04:05:11,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:05:11" (1/1) ... [2024-11-28 04:05:12,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:05:14,567 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_b043f964-45d6-4dc8-8fa9-68b9161c029a/sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c[377069,377082] [2024-11-28 04:05:14,623 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_b043f964-45d6-4dc8-8fa9-68b9161c029a/sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c[383339,383352] [2024-11-28 04:05:15,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:15,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:05:16,273 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_b043f964-45d6-4dc8-8fa9-68b9161c029a/sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c[377069,377082] [2024-11-28 04:05:16,282 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_b043f964-45d6-4dc8-8fa9-68b9161c029a/sv-benchmarks/c/combinations/Problem05_label40+token_ring.11.cil-2.c[383339,383352] [2024-11-28 04:05:16,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:05:16,433 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:05:16,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16 WrapperNode [2024-11-28 04:05:16,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:05:16,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:16,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:05:16,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:05:16,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:16,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,274 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13158 [2024-11-28 04:05:17,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:05:17,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:05:17,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:05:17,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:05:17,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,589 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:05:17,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,828 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:17,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:18,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:05:18,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:05:18,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:05:18,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:05:18,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (1/1) ... [2024-11-28 04:05:18,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:05:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:18,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:05:18,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b043f964-45d6-4dc8-8fa9-68b9161c029a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:05:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:05:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 04:05:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 04:05:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 04:05:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 04:05:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 04:05:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 04:05:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 04:05:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 04:05:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 04:05:18,190 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 04:05:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 04:05:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 04:05:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:05:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:05:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:05:18,409 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:05:18,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:05:31,716 INFO L? ?]: Removed 1749 outVars from TransFormulas that were not future-live. [2024-11-28 04:05:31,716 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:05:31,811 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:05:31,814 INFO L312 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-28 04:05:31,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:31 BoogieIcfgContainer [2024-11-28 04:05:31,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:05:31,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:05:31,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:05:31,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:05:31,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:05:11" (1/3) ... [2024-11-28 04:05:31,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff8860f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:31, skipping insertion in model container [2024-11-28 04:05:31,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:05:16" (2/3) ... [2024-11-28 04:05:31,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff8860f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:05:31, skipping insertion in model container [2024-11-28 04:05:31,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:05:31" (3/3) ... [2024-11-28 04:05:31,829 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.11.cil-2.c [2024-11-28 04:05:31,849 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:05:31,853 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label40+token_ring.11.cil-2.c that has 7 procedures, 2538 locations, 1 initial locations, 15 loop locations, and 2 error locations. [2024-11-28 04:05:32,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:05:32,049 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;@372c1b02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:05:32,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:05:32,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:05:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:32,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:32,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:32,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:32,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash -21151577, now seen corresponding path program 1 times [2024-11-28 04:05:32,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:32,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314915904] [2024-11-28 04:05:32,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:32,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:32,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314915904] [2024-11-28 04:05:32,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314915904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:32,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:32,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:05:32,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236174750] [2024-11-28 04:05:32,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:32,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:05:32,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:32,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:05:32,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:32,804 INFO L87 Difference]: Start difference. First operand has 2538 states, 2505 states have (on average 1.844311377245509) internal successors, (4620), 2507 states have internal predecessors, (4620), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-28 04:05:33,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:33,147 INFO L93 Difference]: Finished difference Result 5064 states and 9317 transitions. [2024-11-28 04:05:33,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:05:33,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:33,191 INFO L225 Difference]: With dead ends: 5064 [2024-11-28 04:05:33,192 INFO L226 Difference]: Without dead ends: 2471 [2024-11-28 04:05:33,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:05:33,215 INFO L435 NwaCegarLoop]: 4577 mSDtfsCounter, 544 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 8599 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 [2024-11-28 04:05:33,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 8599 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2024-11-28 04:05:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2471. [2024-11-28 04:05:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2438 states have (on average 1.8289581624282198) internal successors, (4459), 2440 states have internal predecessors, (4459), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:05:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 4509 transitions. [2024-11-28 04:05:33,412 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 4509 transitions. Word has length 165 [2024-11-28 04:05:33,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:33,415 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 4509 transitions. [2024-11-28 04:05:33,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-28 04:05:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 4509 transitions. [2024-11-28 04:05:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:33,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:33,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:33,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:05:33,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:33,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 902015849, now seen corresponding path program 1 times [2024-11-28 04:05:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164090888] [2024-11-28 04:05:33,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:33,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:34,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:34,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164090888] [2024-11-28 04:05:34,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164090888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:34,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:34,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:34,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359751134] [2024-11-28 04:05:34,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:34,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:34,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:34,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:34,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:34,180 INFO L87 Difference]: Start difference. First operand 2471 states and 4509 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-11-28 04:05:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:35,415 INFO L93 Difference]: Finished difference Result 3177 states and 5637 transitions. [2024-11-28 04:05:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:05:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:35,436 INFO L225 Difference]: With dead ends: 3177 [2024-11-28 04:05:35,437 INFO L226 Difference]: Without dead ends: 2846 [2024-11-28 04:05:35,439 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 [2024-11-28 04:05:35,442 INFO L435 NwaCegarLoop]: 4385 mSDtfsCounter, 5021 mSDsluCounter, 9004 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 13389 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:35,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5040 Valid, 13389 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:05:35,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2024-11-28 04:05:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2819. [2024-11-28 04:05:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2759 states have (on average 1.802102210945995) internal successors, (4972), 2762 states have internal predecessors, (4972), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-28 04:05:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 5063 transitions. [2024-11-28 04:05:35,568 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 5063 transitions. Word has length 165 [2024-11-28 04:05:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:35,570 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 5063 transitions. [2024-11-28 04:05:35,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 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) [2024-11-28 04:05:35,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 5063 transitions. [2024-11-28 04:05:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:35,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:35,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:35,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:05:35,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:35,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1752217069, now seen corresponding path program 1 times [2024-11-28 04:05:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:35,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902289047] [2024-11-28 04:05:35,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:35,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:35,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902289047] [2024-11-28 04:05:35,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902289047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:35,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:35,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:35,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28387667] [2024-11-28 04:05:35,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:35,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:35,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:35,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:35,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:35,998 INFO L87 Difference]: Start difference. First operand 2819 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:37,365 INFO L93 Difference]: Finished difference Result 3944 states and 6878 transitions. [2024-11-28 04:05:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:37,384 INFO L225 Difference]: With dead ends: 3944 [2024-11-28 04:05:37,384 INFO L226 Difference]: Without dead ends: 3265 [2024-11-28 04:05:37,390 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 [2024-11-28 04:05:37,391 INFO L435 NwaCegarLoop]: 4677 mSDtfsCounter, 5029 mSDsluCounter, 14076 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5048 SdHoareTripleChecker+Valid, 18753 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:37,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5048 Valid, 18753 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:05:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-11-28 04:05:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3142. [2024-11-28 04:05:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3055 states have (on average 1.779050736497545) internal successors, (5435), 3059 states have internal predecessors, (5435), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-28 04:05:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 5569 transitions. [2024-11-28 04:05:37,535 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 5569 transitions. Word has length 165 [2024-11-28 04:05:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:37,536 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 5569 transitions. [2024-11-28 04:05:37,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:37,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 5569 transitions. [2024-11-28 04:05:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:37,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:37,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:37,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:05:37,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:37,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:37,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1211787563, now seen corresponding path program 1 times [2024-11-28 04:05:37,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:37,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619008370] [2024-11-28 04:05:37,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:37,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:37,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619008370] [2024-11-28 04:05:37,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619008370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:37,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:37,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:37,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44735834] [2024-11-28 04:05:37,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:37,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:37,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:37,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:37,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:37,935 INFO L87 Difference]: Start difference. First operand 3142 states and 5569 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:39,453 INFO L93 Difference]: Finished difference Result 4977 states and 8523 transitions. [2024-11-28 04:05:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:39,479 INFO L225 Difference]: With dead ends: 4977 [2024-11-28 04:05:39,479 INFO L226 Difference]: Without dead ends: 3975 [2024-11-28 04:05:39,485 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 [2024-11-28 04:05:39,486 INFO L435 NwaCegarLoop]: 4673 mSDtfsCounter, 5024 mSDsluCounter, 14064 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5043 SdHoareTripleChecker+Valid, 18737 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:39,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5043 Valid, 18737 Invalid, 1047 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:05:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3975 states. [2024-11-28 04:05:39,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3975 to 3833. [2024-11-28 04:05:39,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3690 states have (on average 1.7463414634146341) internal successors, (6444), 3698 states have internal predecessors, (6444), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-28 04:05:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 6670 transitions. [2024-11-28 04:05:39,727 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 6670 transitions. Word has length 165 [2024-11-28 04:05:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:39,729 INFO L471 AbstractCegarLoop]: Abstraction has 3833 states and 6670 transitions. [2024-11-28 04:05:39,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 6670 transitions. [2024-11-28 04:05:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:39,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:39,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:39,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:05:39,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:39,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:39,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1055807021, now seen corresponding path program 1 times [2024-11-28 04:05:39,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:39,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196305676] [2024-11-28 04:05:39,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:39,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:40,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:40,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:40,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196305676] [2024-11-28 04:05:40,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196305676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:40,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:40,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:40,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915719812] [2024-11-28 04:05:40,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:40,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:40,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:40,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:40,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:40,106 INFO L87 Difference]: Start difference. First operand 3833 states and 6670 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:41,603 INFO L93 Difference]: Finished difference Result 7218 states and 12166 transitions. [2024-11-28 04:05:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:41,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:41,636 INFO L225 Difference]: With dead ends: 7218 [2024-11-28 04:05:41,636 INFO L226 Difference]: Without dead ends: 5525 [2024-11-28 04:05:41,644 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 [2024-11-28 04:05:41,645 INFO L435 NwaCegarLoop]: 4670 mSDtfsCounter, 5019 mSDsluCounter, 14055 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 18725 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:41,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 18725 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:05:41,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2024-11-28 04:05:41,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5344. [2024-11-28 04:05:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5083 states have (on average 1.7115876450914813) internal successors, (8700), 5105 states have internal predecessors, (8700), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-28 04:05:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 9134 transitions. [2024-11-28 04:05:41,936 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 9134 transitions. Word has length 165 [2024-11-28 04:05:41,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:41,937 INFO L471 AbstractCegarLoop]: Abstraction has 5344 states and 9134 transitions. [2024-11-28 04:05:41,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 9134 transitions. [2024-11-28 04:05:41,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:41,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:41,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:41,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:05:41,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:41,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:41,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1466417387, now seen corresponding path program 1 times [2024-11-28 04:05:41,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:41,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999585833] [2024-11-28 04:05:41,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:41,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:42,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999585833] [2024-11-28 04:05:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999585833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:42,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:42,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:42,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192111925] [2024-11-28 04:05:42,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:42,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:42,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:42,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:42,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:42,203 INFO L87 Difference]: Start difference. First operand 5344 states and 9134 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:43,587 INFO L93 Difference]: Finished difference Result 12197 states and 20488 transitions. [2024-11-28 04:05:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:43,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:43,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:43,657 INFO L225 Difference]: With dead ends: 12197 [2024-11-28 04:05:43,657 INFO L226 Difference]: Without dead ends: 8993 [2024-11-28 04:05:43,671 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 [2024-11-28 04:05:43,672 INFO L435 NwaCegarLoop]: 4667 mSDtfsCounter, 5014 mSDsluCounter, 14046 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 18713 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:43,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 18713 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:05:43,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8993 states. [2024-11-28 04:05:44,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8993 to 8735. [2024-11-28 04:05:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8220 states have (on average 1.6900243309002434) internal successors, (13892), 8288 states have internal predecessors, (13892), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-28 04:05:44,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 14838 transitions. [2024-11-28 04:05:44,194 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 14838 transitions. Word has length 165 [2024-11-28 04:05:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:44,194 INFO L471 AbstractCegarLoop]: Abstraction has 8735 states and 14838 transitions. [2024-11-28 04:05:44,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 14838 transitions. [2024-11-28 04:05:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:44,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:44,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:44,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:05:44,202 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:44,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:44,202 INFO L85 PathProgramCache]: Analyzing trace with hash -321452435, now seen corresponding path program 1 times [2024-11-28 04:05:44,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:44,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298729167] [2024-11-28 04:05:44,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:44,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:44,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298729167] [2024-11-28 04:05:44,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298729167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:44,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:44,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:44,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629406292] [2024-11-28 04:05:44,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:44,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:44,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:44,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:44,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:44,471 INFO L87 Difference]: Start difference. First operand 8735 states and 14838 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:46,232 INFO L93 Difference]: Finished difference Result 23572 states and 40218 transitions. [2024-11-28 04:05:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:46,330 INFO L225 Difference]: With dead ends: 23572 [2024-11-28 04:05:46,330 INFO L226 Difference]: Without dead ends: 16977 [2024-11-28 04:05:46,363 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 [2024-11-28 04:05:46,364 INFO L435 NwaCegarLoop]: 4664 mSDtfsCounter, 5009 mSDsluCounter, 14037 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5028 SdHoareTripleChecker+Valid, 18701 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:46,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5028 Valid, 18701 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:05:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16977 states. [2024-11-28 04:05:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16977 to 16570. [2024-11-28 04:05:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6918608403795263) internal successors, (26212), 15707 states have internal predecessors, (26212), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-28 04:05:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28566 transitions. [2024-11-28 04:05:47,227 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28566 transitions. Word has length 165 [2024-11-28 04:05:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:47,227 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28566 transitions. [2024-11-28 04:05:47,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28566 transitions. [2024-11-28 04:05:47,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:47,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:47,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:47,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:05:47,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:47,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1837631659, now seen corresponding path program 1 times [2024-11-28 04:05:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099266103] [2024-11-28 04:05:47,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:47,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:47,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099266103] [2024-11-28 04:05:47,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099266103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:47,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:47,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:47,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150330335] [2024-11-28 04:05:47,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:47,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:47,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:47,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:47,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:47,521 INFO L87 Difference]: Start difference. First operand 16570 states and 28566 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:48,902 INFO L93 Difference]: Finished difference Result 35410 states and 62319 transitions. [2024-11-28 04:05:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:05:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:48,997 INFO L225 Difference]: With dead ends: 35410 [2024-11-28 04:05:48,998 INFO L226 Difference]: Without dead ends: 20980 [2024-11-28 04:05:49,050 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 [2024-11-28 04:05:49,050 INFO L435 NwaCegarLoop]: 4362 mSDtfsCounter, 4703 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4722 SdHoareTripleChecker+Valid, 12941 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:49,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4722 Valid, 12941 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:05:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20980 states. [2024-11-28 04:05:50,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 16570. [2024-11-28 04:05:50,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16570 states, 15493 states have (on average 1.6897308461886014) internal successors, (26179), 15707 states have internal predecessors, (26179), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-28 04:05:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16570 states to 16570 states and 28533 transitions. [2024-11-28 04:05:50,141 INFO L78 Accepts]: Start accepts. Automaton has 16570 states and 28533 transitions. Word has length 165 [2024-11-28 04:05:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:50,141 INFO L471 AbstractCegarLoop]: Abstraction has 16570 states and 28533 transitions. [2024-11-28 04:05:50,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:50,142 INFO L276 IsEmpty]: Start isEmpty. Operand 16570 states and 28533 transitions. [2024-11-28 04:05:50,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:50,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:50,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:50,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:05:50,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:50,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2039446935, now seen corresponding path program 1 times [2024-11-28 04:05:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:50,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350429807] [2024-11-28 04:05:50,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:50,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:50,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:50,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350429807] [2024-11-28 04:05:50,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350429807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:50,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:50,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519367474] [2024-11-28 04:05:50,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:50,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:50,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:50,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:50,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:50,468 INFO L87 Difference]: Start difference. First operand 16570 states and 28533 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:53,176 INFO L93 Difference]: Finished difference Result 49803 states and 87789 transitions. [2024-11-28 04:05:53,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:05:53,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:05:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:53,357 INFO L225 Difference]: With dead ends: 49803 [2024-11-28 04:05:53,357 INFO L226 Difference]: Without dead ends: 35373 [2024-11-28 04:05:53,400 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 [2024-11-28 04:05:53,402 INFO L435 NwaCegarLoop]: 4652 mSDtfsCounter, 4993 mSDsluCounter, 14004 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5012 SdHoareTripleChecker+Valid, 18656 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:53,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5012 Valid, 18656 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:05:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35373 states. [2024-11-28 04:05:55,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35373 to 34751. [2024-11-28 04:05:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34751 states, 32388 states have (on average 1.7076386315919476) internal successors, (55307), 33056 states have internal predecessors, (55307), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-28 04:05:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34751 states to 34751 states and 62013 transitions. [2024-11-28 04:05:55,392 INFO L78 Accepts]: Start accepts. Automaton has 34751 states and 62013 transitions. Word has length 165 [2024-11-28 04:05:55,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:55,393 INFO L471 AbstractCegarLoop]: Abstraction has 34751 states and 62013 transitions. [2024-11-28 04:05:55,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:05:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 34751 states and 62013 transitions. [2024-11-28 04:05:55,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:05:55,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:55,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:05:55,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:05:55,414 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:55,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:55,419 INFO L85 PathProgramCache]: Analyzing trace with hash -640493333, now seen corresponding path program 1 times [2024-11-28 04:05:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464518307] [2024-11-28 04:05:55,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:55,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464518307] [2024-11-28 04:05:55,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464518307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:55,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:55,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:05:55,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938875006] [2024-11-28 04:05:55,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:55,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:05:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:55,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:05:55,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:05:55,671 INFO L87 Difference]: Start difference. First operand 34751 states and 62013 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:06:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:00,365 INFO L93 Difference]: Finished difference Result 112356 states and 208903 transitions. [2024-11-28 04:06:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:06:00,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:06:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:00,824 INFO L225 Difference]: With dead ends: 112356 [2024-11-28 04:06:00,824 INFO L226 Difference]: Without dead ends: 79745 [2024-11-28 04:06:00,943 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 [2024-11-28 04:06:00,945 INFO L435 NwaCegarLoop]: 4649 mSDtfsCounter, 4988 mSDsluCounter, 13995 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 18644 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:00,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 18644 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:06:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79745 states. [2024-11-28 04:06:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79745 to 78646. [2024-11-28 04:06:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78646 states, 73225 states have (on average 1.736278593376579) internal successors, (127139), 75287 states have internal predecessors, (127139), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-28 04:06:05,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78646 states to 78646 states and 148693 transitions. [2024-11-28 04:06:05,667 INFO L78 Accepts]: Start accepts. Automaton has 78646 states and 148693 transitions. Word has length 165 [2024-11-28 04:06:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:05,667 INFO L471 AbstractCegarLoop]: Abstraction has 78646 states and 148693 transitions. [2024-11-28 04:06:05,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:06:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 78646 states and 148693 transitions. [2024-11-28 04:06:05,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-28 04:06:05,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:05,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:05,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:06:05,701 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:05,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2037033513, now seen corresponding path program 1 times [2024-11-28 04:06:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:05,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392897562] [2024-11-28 04:06:05,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:05,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:06:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:06:05,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:06:05,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392897562] [2024-11-28 04:06:05,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392897562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:05,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:06:05,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:06:05,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838051157] [2024-11-28 04:06:05,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:05,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:06:05,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:05,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:06:05,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:06:05,932 INFO L87 Difference]: Start difference. First operand 78646 states and 148693 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-28 04:06:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:14,547 INFO L93 Difference]: Finished difference Result 266075 states and 533149 transitions. [2024-11-28 04:06:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:06:14,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 5 states have internal predecessors, (155), 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 165 [2024-11-28 04:06:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:16,008 INFO L225 Difference]: With dead ends: 266075 [2024-11-28 04:06:16,008 INFO L226 Difference]: Without dead ends: 189569 [2024-11-28 04:06:16,470 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 [2024-11-28 04:06:16,470 INFO L435 NwaCegarLoop]: 4646 mSDtfsCounter, 4983 mSDsluCounter, 13986 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 18632 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:16,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 18632 Invalid, 1047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:06:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189569 states.