./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd --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 baf2679bf12305063b7a185b7ceccd8123ae67f841713533125dfbe04aeffae0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:29:44,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:29:44,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:29:44,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:29:44,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:29:44,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:29:44,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:29:44,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:29:44,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:29:44,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:29:44,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:29:44,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:29:44,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:29:44,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:29:44,564 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:29:44,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:29:44,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:29:44,566 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:29:44,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:29:44,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:29:44,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:29:44,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:29:44,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:29:44,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:29:44,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:29:44,568 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_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd 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 -> baf2679bf12305063b7a185b7ceccd8123ae67f841713533125dfbe04aeffae0 [2024-11-13 14:29:44,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:29:44,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:29:44,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:29:44,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:29:44,821 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:29:44,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c Unable to find full path for "g++" [2024-11-13 14:29:46,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:29:47,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:29:47,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c [2024-11-13 14:29:47,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/data/c0e66645d/5cc1c73df79d4943bae91a2032019ee8/FLAG783cceed3 [2024-11-13 14:29:47,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/data/c0e66645d/5cc1c73df79d4943bae91a2032019ee8 [2024-11-13 14:29:47,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:29:47,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:29:47,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:29:47,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:29:47,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:29:47,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:47" (1/1) ... [2024-11-13 14:29:47,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5290d23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:47, skipping insertion in model container [2024-11-13 14:29:47,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:29:47" (1/1) ... [2024-11-13 14:29:48,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:29:50,102 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_d9ae79a0-eeb6-4fda-ab23-34111370fb30/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[378560,378573] [2024-11-13 14:29:50,152 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_d9ae79a0-eeb6-4fda-ab23-34111370fb30/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[383339,383352] [2024-11-13 14:29:50,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:29:50,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:29:51,598 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_d9ae79a0-eeb6-4fda-ab23-34111370fb30/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[378560,378573] [2024-11-13 14:29:51,605 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_d9ae79a0-eeb6-4fda-ab23-34111370fb30/sv-benchmarks/c/combinations/Problem05_label42+token_ring.14.cil.c[383339,383352] [2024-11-13 14:29:51,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:29:51,698 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:29:51,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51 WrapperNode [2024-11-13 14:29:51,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:29:51,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:29:51,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:29:51,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:29:51,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:51,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,349 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13221 [2024-11-13 14:29:52,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:29:52,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:29:52,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:29:52,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:29:52,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,604 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]. [2024-11-13 14:29:52,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:29:52,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:29:52,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:29:52,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:29:52,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (1/1) ... [2024-11-13 14:29:52,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:29:53,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:29:53,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:29:53,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ae79a0-eeb6-4fda-ab23-34111370fb30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:29:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:29:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-13 14:29:53,121 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-13 14:29:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-13 14:29:53,121 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-13 14:29:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-13 14:29:53,122 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-13 14:29:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-13 14:29:53,122 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-13 14:29:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-13 14:29:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-13 14:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-13 14:29:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-13 14:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-13 14:29:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-13 14:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:29:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:29:53,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:29:53,325 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:29:53,328 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:30:05,447 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-13 14:30:05,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:30:05,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:30:05,524 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-13 14:30:05,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:05 BoogieIcfgContainer [2024-11-13 14:30:05,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:30:05,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:30:05,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:30:05,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:30:05,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:29:47" (1/3) ... [2024-11-13 14:30:05,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12860ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:05, skipping insertion in model container [2024-11-13 14:30:05,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:29:51" (2/3) ... [2024-11-13 14:30:05,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12860ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:05, skipping insertion in model container [2024-11-13 14:30:05,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:05" (3/3) ... [2024-11-13 14:30:05,543 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.14.cil.c [2024-11-13 14:30:05,559 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:30:05,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label42+token_ring.14.cil.c that has 8 procedures, 2584 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2024-11-13 14:30:05,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:30:05,716 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;@658a3892, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:30:05,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:30:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 14:30:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:05,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:05,760 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:05,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:05,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:05,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1548535842, now seen corresponding path program 1 times [2024-11-13 14:30:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:05,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122412310] [2024-11-13 14:30:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122412310] [2024-11-13 14:30:06,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122412310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:06,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:06,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:30:06,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983657765] [2024-11-13 14:30:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:30:06,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:30:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:30:06,707 INFO L87 Difference]: Start difference. First operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:10,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:10,046 INFO L93 Difference]: Finished difference Result 5300 states and 9704 transitions. [2024-11-13 14:30:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:30:10,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:10,097 INFO L225 Difference]: With dead ends: 5300 [2024-11-13 14:30:10,098 INFO L226 Difference]: Without dead ends: 2658 [2024-11-13 14:30:10,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:30:10,117 INFO L432 NwaCegarLoop]: 4390 mSDtfsCounter, 1058 mSDsluCounter, 12501 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 16891 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:10,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 16891 Invalid, 1097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 14:30:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-13 14:30:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2516. [2024-11-13 14:30:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.8221774193548388) internal successors, (4519), 2483 states have internal predecessors, (4519), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 14:30:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4573 transitions. [2024-11-13 14:30:10,365 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4573 transitions. Word has length 179 [2024-11-13 14:30:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:10,365 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4573 transitions. [2024-11-13 14:30:10,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4573 transitions. [2024-11-13 14:30:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:10,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:10,377 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:10,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:30:10,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:10,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1338705504, now seen corresponding path program 1 times [2024-11-13 14:30:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:10,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180215100] [2024-11-13 14:30:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:10,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:10,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180215100] [2024-11-13 14:30:10,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180215100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:10,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:10,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:30:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795418045] [2024-11-13 14:30:10,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:10,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:30:10,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:10,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:30:10,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:30:10,869 INFO L87 Difference]: Start difference. First operand 2516 states and 4573 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:13,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:13,593 INFO L93 Difference]: Finished difference Result 3035 states and 5402 transitions. [2024-11-13 14:30:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:30:13,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:13,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:13,609 INFO L225 Difference]: With dead ends: 3035 [2024-11-13 14:30:13,609 INFO L226 Difference]: Without dead ends: 2658 [2024-11-13 14:30:13,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:30:13,615 INFO L432 NwaCegarLoop]: 4320 mSDtfsCounter, 1044 mSDsluCounter, 12298 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 16618 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:13,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 16618 Invalid, 1096 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 14:30:13,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-13 14:30:13,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2516. [2024-11-13 14:30:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.821774193548387) internal successors, (4518), 2483 states have internal predecessors, (4518), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 14:30:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4572 transitions. [2024-11-13 14:30:13,733 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4572 transitions. Word has length 179 [2024-11-13 14:30:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:13,735 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4572 transitions. [2024-11-13 14:30:13,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4572 transitions. [2024-11-13 14:30:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:13,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:13,738 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:13,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:30:13,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:13,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2006087394, now seen corresponding path program 1 times [2024-11-13 14:30:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369514805] [2024-11-13 14:30:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:13,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:14,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:14,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369514805] [2024-11-13 14:30:14,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369514805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:14,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:14,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:30:14,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245005686] [2024-11-13 14:30:14,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:14,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:30:14,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:14,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:30:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:30:14,353 INFO L87 Difference]: Start difference. First operand 2516 states and 4572 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:18,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:18,728 INFO L93 Difference]: Finished difference Result 3568 states and 6261 transitions. [2024-11-13 14:30:18,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:30:18,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:18,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:18,744 INFO L225 Difference]: With dead ends: 3568 [2024-11-13 14:30:18,744 INFO L226 Difference]: Without dead ends: 3193 [2024-11-13 14:30:18,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:30:18,748 INFO L432 NwaCegarLoop]: 4290 mSDtfsCounter, 5542 mSDsluCounter, 12890 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5561 SdHoareTripleChecker+Valid, 17180 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:18,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5561 Valid, 17180 Invalid, 2385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 14:30:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2024-11-13 14:30:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2908. [2024-11-13 14:30:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2844 states have (on average 1.7907876230661042) internal successors, (5093), 2848 states have internal predecessors, (5093), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-13 14:30:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 5192 transitions. [2024-11-13 14:30:18,922 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 5192 transitions. Word has length 179 [2024-11-13 14:30:18,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:18,923 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 5192 transitions. [2024-11-13 14:30:18,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:18,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 5192 transitions. [2024-11-13 14:30:18,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:18,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:18,927 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:18,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:30:18,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:18,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:18,928 INFO L85 PathProgramCache]: Analyzing trace with hash 903140122, now seen corresponding path program 1 times [2024-11-13 14:30:18,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:18,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792247645] [2024-11-13 14:30:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:18,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792247645] [2024-11-13 14:30:19,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792247645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:19,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:19,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178940456] [2024-11-13 14:30:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:19,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:19,413 INFO L87 Difference]: Start difference. First operand 2908 states and 5192 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:24,869 INFO L93 Difference]: Finished difference Result 4513 states and 7773 transitions. [2024-11-13 14:30:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:30:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:24,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:24,887 INFO L225 Difference]: With dead ends: 4513 [2024-11-13 14:30:24,887 INFO L226 Difference]: Without dead ends: 3746 [2024-11-13 14:30:24,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:30:24,897 INFO L432 NwaCegarLoop]: 4548 mSDtfsCounter, 5575 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 22413 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:24,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 22413 Invalid, 3662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:30:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2024-11-13 14:30:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3273. [2024-11-13 14:30:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3181 states have (on average 1.7648538195535994) internal successors, (5614), 3186 states have internal predecessors, (5614), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-13 14:30:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 5757 transitions. [2024-11-13 14:30:25,076 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 5757 transitions. Word has length 179 [2024-11-13 14:30:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:25,077 INFO L471 AbstractCegarLoop]: Abstraction has 3273 states and 5757 transitions. [2024-11-13 14:30:25,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 5757 transitions. [2024-11-13 14:30:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:25,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:25,080 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:25,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:30:25,082 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:25,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash -866331492, now seen corresponding path program 1 times [2024-11-13 14:30:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754522737] [2024-11-13 14:30:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:25,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:25,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754522737] [2024-11-13 14:30:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754522737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:25,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:25,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:25,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434766190] [2024-11-13 14:30:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:25,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:25,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:25,552 INFO L87 Difference]: Start difference. First operand 3273 states and 5757 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:30,424 INFO L93 Difference]: Finished difference Result 5907 states and 9984 transitions. [2024-11-13 14:30:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:30:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:30,441 INFO L225 Difference]: With dead ends: 5907 [2024-11-13 14:30:30,441 INFO L226 Difference]: Without dead ends: 4775 [2024-11-13 14:30:30,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:30:30,446 INFO L432 NwaCegarLoop]: 4300 mSDtfsCounter, 5689 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5708 SdHoareTripleChecker+Valid, 21455 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:30,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5708 Valid, 21455 Invalid, 3165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 14:30:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2024-11-13 14:30:30,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4004. [2024-11-13 14:30:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 3856 states have (on average 1.7264004149377594) internal successors, (6657), 3863 states have internal predecessors, (6657), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-13 14:30:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 6892 transitions. [2024-11-13 14:30:30,646 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 6892 transitions. Word has length 179 [2024-11-13 14:30:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:30,646 INFO L471 AbstractCegarLoop]: Abstraction has 4004 states and 6892 transitions. [2024-11-13 14:30:30,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 6892 transitions. [2024-11-13 14:30:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:30,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:30,651 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:30,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:30:30,651 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:30,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1477600550, now seen corresponding path program 1 times [2024-11-13 14:30:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:30,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381127848] [2024-11-13 14:30:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:30,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:31,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:31,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:31,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:31,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381127848] [2024-11-13 14:30:31,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381127848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:31,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:31,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093059976] [2024-11-13 14:30:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:31,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:31,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:31,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:31,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:31,054 INFO L87 Difference]: Start difference. First operand 4004 states and 6892 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:36,196 INFO L93 Difference]: Finished difference Result 8590 states and 14211 transitions. [2024-11-13 14:30:36,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:30:36,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:36,223 INFO L225 Difference]: With dead ends: 8590 [2024-11-13 14:30:36,223 INFO L226 Difference]: Without dead ends: 6727 [2024-11-13 14:30:36,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:30:36,230 INFO L432 NwaCegarLoop]: 4546 mSDtfsCounter, 5573 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3586 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5592 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:36,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5592 Valid, 22411 Invalid, 3653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3586 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 14:30:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6727 states. [2024-11-13 14:30:36,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6727 to 5467. [2024-11-13 14:30:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5207 states have (on average 1.67908584597657) internal successors, (8743), 5218 states have internal predecessors, (8743), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-13 14:30:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 9168 transitions. [2024-11-13 14:30:36,514 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 9168 transitions. Word has length 179 [2024-11-13 14:30:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:36,516 INFO L471 AbstractCegarLoop]: Abstraction has 5467 states and 9168 transitions. [2024-11-13 14:30:36,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 9168 transitions. [2024-11-13 14:30:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:36,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:36,521 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:36,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:30:36,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:36,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1412175068, now seen corresponding path program 1 times [2024-11-13 14:30:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:36,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649335856] [2024-11-13 14:30:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:36,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:36,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649335856] [2024-11-13 14:30:36,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649335856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:36,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:36,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:36,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146864479] [2024-11-13 14:30:36,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:36,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:36,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:36,954 INFO L87 Difference]: Start difference. First operand 5467 states and 9168 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:42,598 INFO L93 Difference]: Finished difference Result 13948 states and 22669 transitions. [2024-11-13 14:30:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:30:42,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:42,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:42,641 INFO L225 Difference]: With dead ends: 13948 [2024-11-13 14:30:42,641 INFO L226 Difference]: Without dead ends: 10622 [2024-11-13 14:30:42,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:30:42,653 INFO L432 NwaCegarLoop]: 4546 mSDtfsCounter, 5569 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:42,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5588 Valid, 22411 Invalid, 3625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 14:30:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2024-11-13 14:30:43,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 8407. [2024-11-13 14:30:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8407 states, 7923 states have (on average 1.6330935251798562) internal successors, (12939), 7942 states have internal predecessors, (12939), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-13 14:30:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8407 states to 8407 states and 13762 transitions. [2024-11-13 14:30:43,198 INFO L78 Accepts]: Start accepts. Automaton has 8407 states and 13762 transitions. Word has length 179 [2024-11-13 14:30:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:43,199 INFO L471 AbstractCegarLoop]: Abstraction has 8407 states and 13762 transitions. [2024-11-13 14:30:43,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8407 states and 13762 transitions. [2024-11-13 14:30:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:43,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:43,205 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:43,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:30:43,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:43,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:43,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1436211362, now seen corresponding path program 1 times [2024-11-13 14:30:43,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:43,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356907233] [2024-11-13 14:30:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:43,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:43,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:43,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356907233] [2024-11-13 14:30:43,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356907233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:43,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:43,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:43,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143865052] [2024-11-13 14:30:43,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:43,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:43,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:43,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:43,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:43,593 INFO L87 Difference]: Start difference. First operand 8407 states and 13762 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:49,372 INFO L93 Difference]: Finished difference Result 24682 states and 39677 transitions. [2024-11-13 14:30:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:30:49,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:49,446 INFO L225 Difference]: With dead ends: 24682 [2024-11-13 14:30:49,446 INFO L226 Difference]: Without dead ends: 18416 [2024-11-13 14:30:49,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:30:49,466 INFO L432 NwaCegarLoop]: 4546 mSDtfsCounter, 5568 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5587 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:49,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5587 Valid, 22411 Invalid, 3612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 14:30:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18416 states. [2024-11-13 14:30:50,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18416 to 14300. [2024-11-13 14:30:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14300 states, 13368 states have (on average 1.5970227408737283) internal successors, (21349), 13403 states have internal predecessors, (21349), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-13 14:30:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 23022 transitions. [2024-11-13 14:30:50,362 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 23022 transitions. Word has length 179 [2024-11-13 14:30:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:50,362 INFO L471 AbstractCegarLoop]: Abstraction has 14300 states and 23022 transitions. [2024-11-13 14:30:50,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 23022 transitions. [2024-11-13 14:30:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:50,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:50,375 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:50,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:30:50,375 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:50,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1935588508, now seen corresponding path program 1 times [2024-11-13 14:30:50,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:50,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354124260] [2024-11-13 14:30:50,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:50,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:50,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:50,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:50,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354124260] [2024-11-13 14:30:50,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354124260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143136143] [2024-11-13 14:30:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:50,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:50,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:50,804 INFO L87 Difference]: Start difference. First operand 14300 states and 23022 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:54,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:30:54,328 INFO L93 Difference]: Finished difference Result 30826 states and 49644 transitions. [2024-11-13 14:30:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:30:54,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:30:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:30:54,402 INFO L225 Difference]: With dead ends: 30826 [2024-11-13 14:30:54,403 INFO L226 Difference]: Without dead ends: 18667 [2024-11-13 14:30:54,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:30:54,441 INFO L432 NwaCegarLoop]: 4275 mSDtfsCounter, 5121 mSDsluCounter, 16832 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 21107 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:30:54,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 21107 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 14:30:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18667 states. [2024-11-13 14:30:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18667 to 14300. [2024-11-13 14:30:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14300 states, 13368 states have (on average 1.594554159186116) internal successors, (21316), 13403 states have internal predecessors, (21316), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-13 14:30:55,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 22989 transitions. [2024-11-13 14:30:55,450 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 22989 transitions. Word has length 179 [2024-11-13 14:30:55,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:30:55,451 INFO L471 AbstractCegarLoop]: Abstraction has 14300 states and 22989 transitions. [2024-11-13 14:30:55,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:30:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 22989 transitions. [2024-11-13 14:30:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:30:55,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:30:55,462 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:30:55,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:30:55,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:30:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:30:55,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1973516386, now seen corresponding path program 1 times [2024-11-13 14:30:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:30:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362490180] [2024-11-13 14:30:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:30:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:30:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:30:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:30:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:30:55,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:55,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362490180] [2024-11-13 14:30:55,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362490180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:30:55,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:30:55,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:30:55,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211407395] [2024-11-13 14:30:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:30:55,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:30:55,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:30:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:30:55,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:30:55,887 INFO L87 Difference]: Start difference. First operand 14300 states and 22989 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:31:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:02,665 INFO L93 Difference]: Finished difference Result 46115 states and 73651 transitions. [2024-11-13 14:31:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:31:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:31:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:31:02,778 INFO L225 Difference]: With dead ends: 46115 [2024-11-13 14:31:02,778 INFO L226 Difference]: Without dead ends: 33956 [2024-11-13 14:31:02,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:31:02,811 INFO L432 NwaCegarLoop]: 4546 mSDtfsCounter, 5560 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:31:02,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5579 Valid, 22411 Invalid, 3574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 14:31:02,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33956 states. [2024-11-13 14:31:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33956 to 26150. [2024-11-13 14:31:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26150 states, 24322 states have (on average 1.5699366828385823) internal successors, (38184), 24389 states have internal predecessors, (38184), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-13 14:31:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26150 states to 26150 states and 41719 transitions. [2024-11-13 14:31:04,295 INFO L78 Accepts]: Start accepts. Automaton has 26150 states and 41719 transitions. Word has length 179 [2024-11-13 14:31:04,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:31:04,295 INFO L471 AbstractCegarLoop]: Abstraction has 26150 states and 41719 transitions. [2024-11-13 14:31:04,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:31:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 26150 states and 41719 transitions. [2024-11-13 14:31:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:31:04,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:31:04,310 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:04,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:31:04,310 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:31:04,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2056803420, now seen corresponding path program 1 times [2024-11-13 14:31:04,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:04,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861434101] [2024-11-13 14:31:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:31:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:31:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:31:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:31:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:31:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:04,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:04,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861434101] [2024-11-13 14:31:04,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861434101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:04,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:04,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:31:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047044195] [2024-11-13 14:31:04,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:04,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:31:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:31:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:31:04,651 INFO L87 Difference]: Start difference. First operand 26150 states and 41719 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:31:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:12,567 INFO L93 Difference]: Finished difference Result 89051 states and 142475 transitions. [2024-11-13 14:31:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:31:12,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:31:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:31:12,871 INFO L225 Difference]: With dead ends: 89051 [2024-11-13 14:31:12,872 INFO L226 Difference]: Without dead ends: 65042 [2024-11-13 14:31:12,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:31:12,974 INFO L432 NwaCegarLoop]: 4546 mSDtfsCounter, 5559 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3494 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:31:12,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 22411 Invalid, 3561 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [67 Valid, 3494 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 14:31:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65042 states. [2024-11-13 14:31:16,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65042 to 49911. [2024-11-13 14:31:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49911 states, 46291 states have (on average 1.555593959949018) internal successors, (72010), 46422 states have internal predecessors, (72010), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-13 14:31:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49911 states to 49911 states and 79755 transitions. [2024-11-13 14:31:16,200 INFO L78 Accepts]: Start accepts. Automaton has 49911 states and 79755 transitions. Word has length 179 [2024-11-13 14:31:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:31:16,200 INFO L471 AbstractCegarLoop]: Abstraction has 49911 states and 79755 transitions. [2024-11-13 14:31:16,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:31:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 49911 states and 79755 transitions. [2024-11-13 14:31:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 14:31:16,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:31:16,225 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:31:16,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:31:16,226 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:31:16,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:31:16,226 INFO L85 PathProgramCache]: Analyzing trace with hash -307038242, now seen corresponding path program 1 times [2024-11-13 14:31:16,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:31:16,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958821987] [2024-11-13 14:31:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:31:16,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:31:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 14:31:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:31:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:31:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-13 14:31:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-13 14:31:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:31:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:31:16,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:31:16,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958821987] [2024-11-13 14:31:16,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958821987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:31:16,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:31:16,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:31:16,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465927696] [2024-11-13 14:31:16,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:31:16,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:31:16,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:31:16,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:31:16,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:31:16,588 INFO L87 Difference]: Start difference. First operand 49911 states and 79755 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:31:28,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:31:28,010 INFO L93 Difference]: Finished difference Result 174922 states and 281969 transitions. [2024-11-13 14:31:28,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:31:28,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-13 14:31:28,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:31:28,500 INFO L225 Difference]: With dead ends: 174922 [2024-11-13 14:31:28,500 INFO L226 Difference]: Without dead ends: 127152 [2024-11-13 14:31:28,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:31:28,621 INFO L432 NwaCegarLoop]: 4300 mSDtfsCounter, 5662 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 21455 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:31:28,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5681 Valid, 21455 Invalid, 3089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 14:31:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127152 states.