./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0515a0092ae60bee69c0826328a56fce70547e074096ceb561e2dff3da2ff25f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:11:14,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:11:14,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:11:14,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:11:14,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:11:14,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:11:14,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:11:14,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:11:14,328 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:11:14,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:11:14,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:11:14,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:11:14,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:11:14,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:11:14,330 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:11:14,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:11:14,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:11:14,331 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:11:14,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:11:14,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:11:14,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:11:14,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:11:14,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:11:14,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:11:14,336 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:11:14,336 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:11:14,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:11:14,337 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:11:14,337 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:11:14,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:11:14,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:11:14,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:11:14,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:11:14,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:11:14,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:11:14,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:11:14,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:11:14,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:11:14,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:11:14,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:11:14,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:11:14,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:11:14,341 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0515a0092ae60bee69c0826328a56fce70547e074096ceb561e2dff3da2ff25f [2024-11-20 00:11:14,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:11:14,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:11:14,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:11:14,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:11:14,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:11:14,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c [2024-11-20 00:11:15,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:11:16,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:11:16,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c [2024-11-20 00:11:16,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf2ba5d7/afc4616678ae45008021fedaae739561/FLAG6d3eb34a9 [2024-11-20 00:11:16,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf2ba5d7/afc4616678ae45008021fedaae739561 [2024-11-20 00:11:16,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:11:16,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:11:16,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:11:16,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:11:16,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:11:16,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6867c346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16, skipping insertion in model container [2024-11-20 00:11:16,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:11:16,400 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c[911,924] [2024-11-20 00:11:16,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c[8416,8429] [2024-11-20 00:11:16,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:11:16,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:11:16,606 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c[911,924] [2024-11-20 00:11:16,632 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.06.cil-2.c[8416,8429] [2024-11-20 00:11:16,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:11:16,693 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:11:16,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16 WrapperNode [2024-11-20 00:11:16,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:11:16,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:11:16,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:11:16,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:11:16,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,773 INFO L138 Inliner]: procedures = 67, calls = 79, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 746 [2024-11-20 00:11:16,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:11:16,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:11:16,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:11:16,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:11:16,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,808 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]. [2024-11-20 00:11:16,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:11:16,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:11:16,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:11:16,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:11:16,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (1/1) ... [2024-11-20 00:11:16,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:11:16,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:11:16,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:11:16,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:11:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:11:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:11:16,931 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:11:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:11:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-20 00:11:16,933 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-20 00:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-20 00:11:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-20 00:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-20 00:11:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-20 00:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:11:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:11:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:11:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-20 00:11:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-20 00:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:11:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:11:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:11:17,026 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:11:17,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:11:17,451 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-20 00:11:17,451 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-20 00:11:17,538 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-20 00:11:17,538 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:11:17,554 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:11:17,554 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-20 00:11:17,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:17 BoogieIcfgContainer [2024-11-20 00:11:17,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:11:17,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:11:17,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:11:17,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:11:17,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:11:16" (1/3) ... [2024-11-20 00:11:17,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98a528b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:11:17, skipping insertion in model container [2024-11-20 00:11:17,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:11:16" (2/3) ... [2024-11-20 00:11:17,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98a528b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:11:17, skipping insertion in model container [2024-11-20 00:11:17,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:17" (3/3) ... [2024-11-20 00:11:17,561 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.06.cil-2.c [2024-11-20 00:11:17,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:11:17,575 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:11:17,672 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:11:17,677 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;@6ce6962c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:11:17,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:11:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 303 states have (on average 1.5907590759075907) internal successors, (482), 309 states have internal predecessors, (482), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 00:11:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:17,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:17,698 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] [2024-11-20 00:11:17,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:17,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:17,703 INFO L85 PathProgramCache]: Analyzing trace with hash 342039748, now seen corresponding path program 1 times [2024-11-20 00:11:17,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327027576] [2024-11-20 00:11:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:18,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:18,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327027576] [2024-11-20 00:11:18,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327027576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:18,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:18,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:11:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704452675] [2024-11-20 00:11:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:18,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:11:18,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:11:18,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:18,142 INFO L87 Difference]: Start difference. First operand has 356 states, 303 states have (on average 1.5907590759075907) internal successors, (482), 309 states have internal predecessors, (482), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:19,023 INFO L93 Difference]: Finished difference Result 841 states and 1307 transitions. [2024-11-20 00:11:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:19,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:11:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:19,037 INFO L225 Difference]: With dead ends: 841 [2024-11-20 00:11:19,037 INFO L226 Difference]: Without dead ends: 497 [2024-11-20 00:11:19,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:19,044 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 943 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:19,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1550 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:11:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-20 00:11:19,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 458. [2024-11-20 00:11:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 385 states have (on average 1.483116883116883) internal successors, (571), 391 states have internal predecessors, (571), 49 states have call successors, (49), 21 states have call predecessors, (49), 22 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-20 00:11:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 672 transitions. [2024-11-20 00:11:19,114 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 672 transitions. Word has length 65 [2024-11-20 00:11:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:19,115 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 672 transitions. [2024-11-20 00:11:19,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 672 transitions. [2024-11-20 00:11:19,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:19,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:19,118 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] [2024-11-20 00:11:19,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:11:19,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:19,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2020928388, now seen corresponding path program 1 times [2024-11-20 00:11:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:19,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048155750] [2024-11-20 00:11:19,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:19,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:19,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048155750] [2024-11-20 00:11:19,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048155750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:19,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:19,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:11:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928042556] [2024-11-20 00:11:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:19,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:11:19,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:19,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:11:19,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:19,344 INFO L87 Difference]: Start difference. First operand 458 states and 672 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:20,208 INFO L93 Difference]: Finished difference Result 855 states and 1238 transitions. [2024-11-20 00:11:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 00:11:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:11:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:20,212 INFO L225 Difference]: With dead ends: 855 [2024-11-20 00:11:20,212 INFO L226 Difference]: Without dead ends: 646 [2024-11-20 00:11:20,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-20 00:11:20,215 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 1261 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:20,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1402 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:11:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-20 00:11:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 570. [2024-11-20 00:11:20,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 475 states have (on average 1.4673684210526317) internal successors, (697), 483 states have internal predecessors, (697), 62 states have call successors, (62), 28 states have call predecessors, (62), 31 states have return successors, (73), 62 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-20 00:11:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 832 transitions. [2024-11-20 00:11:20,250 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 832 transitions. Word has length 65 [2024-11-20 00:11:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:20,251 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 832 transitions. [2024-11-20 00:11:20,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:20,251 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 832 transitions. [2024-11-20 00:11:20,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:20,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:20,253 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] [2024-11-20 00:11:20,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:11:20,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:20,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash -7657722, now seen corresponding path program 1 times [2024-11-20 00:11:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:20,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872058041] [2024-11-20 00:11:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872058041] [2024-11-20 00:11:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872058041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:20,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612327747] [2024-11-20 00:11:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:20,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:20,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:20,328 INFO L87 Difference]: Start difference. First operand 570 states and 832 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:21,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:21,025 INFO L93 Difference]: Finished difference Result 1242 states and 1774 transitions. [2024-11-20 00:11:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:21,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-20 00:11:21,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:21,029 INFO L225 Difference]: With dead ends: 1242 [2024-11-20 00:11:21,030 INFO L226 Difference]: Without dead ends: 927 [2024-11-20 00:11:21,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:11:21,031 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 1107 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:21,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1459 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:11:21,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-20 00:11:21,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 851. [2024-11-20 00:11:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 701 states have (on average 1.4322396576319543) internal successors, (1004), 713 states have internal predecessors, (1004), 92 states have call successors, (92), 49 states have call predecessors, (92), 56 states have return successors, (111), 92 states have call predecessors, (111), 90 states have call successors, (111) [2024-11-20 00:11:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1207 transitions. [2024-11-20 00:11:21,069 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1207 transitions. Word has length 65 [2024-11-20 00:11:21,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:21,069 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1207 transitions. [2024-11-20 00:11:21,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1207 transitions. [2024-11-20 00:11:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 00:11:21,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:21,071 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] [2024-11-20 00:11:21,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:11:21,071 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:21,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 944866325, now seen corresponding path program 1 times [2024-11-20 00:11:21,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:21,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802430020] [2024-11-20 00:11:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:21,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 00:11:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 00:11:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:21,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:21,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802430020] [2024-11-20 00:11:21,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802430020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:21,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:21,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:11:21,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785960225] [2024-11-20 00:11:21,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:21,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:11:21,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:11:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:11:21,183 INFO L87 Difference]: Start difference. First operand 851 states and 1207 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:22,914 INFO L93 Difference]: Finished difference Result 3046 states and 4347 transitions. [2024-11-20 00:11:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 00:11:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-20 00:11:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:22,920 INFO L225 Difference]: With dead ends: 3046 [2024-11-20 00:11:22,920 INFO L226 Difference]: Without dead ends: 1224 [2024-11-20 00:11:22,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 00:11:22,925 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 2134 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:22,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 1887 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:11:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-20 00:11:22,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1054. [2024-11-20 00:11:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 849 states have (on average 1.3969375736160188) internal successors, (1186), 865 states have internal predecessors, (1186), 122 states have call successors, (122), 70 states have call predecessors, (122), 81 states have return successors, (158), 122 states have call predecessors, (158), 120 states have call successors, (158) [2024-11-20 00:11:22,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1466 transitions. [2024-11-20 00:11:22,975 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1466 transitions. Word has length 66 [2024-11-20 00:11:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:22,975 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1466 transitions. [2024-11-20 00:11:22,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:22,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1466 transitions. [2024-11-20 00:11:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:11:22,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:22,977 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] [2024-11-20 00:11:22,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:11:22,977 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:22,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash -491177377, now seen corresponding path program 1 times [2024-11-20 00:11:22,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:22,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054197608] [2024-11-20 00:11:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:23,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:23,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054197608] [2024-11-20 00:11:23,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054197608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:23,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:23,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:11:23,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322467657] [2024-11-20 00:11:23,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:23,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:11:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:11:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:11:23,076 INFO L87 Difference]: Start difference. First operand 1054 states and 1466 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:23,911 INFO L93 Difference]: Finished difference Result 2015 states and 2801 transitions. [2024-11-20 00:11:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-20 00:11:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:23,918 INFO L225 Difference]: With dead ends: 2015 [2024-11-20 00:11:23,918 INFO L226 Difference]: Without dead ends: 1216 [2024-11-20 00:11:23,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:23,922 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 616 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:23,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1801 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:11:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-20 00:11:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1099. [2024-11-20 00:11:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 885 states have (on average 1.3807909604519775) internal successors, (1222), 901 states have internal predecessors, (1222), 122 states have call successors, (122), 70 states have call predecessors, (122), 90 states have return successors, (167), 131 states have call predecessors, (167), 120 states have call successors, (167) [2024-11-20 00:11:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1511 transitions. [2024-11-20 00:11:23,992 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1511 transitions. Word has length 67 [2024-11-20 00:11:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:23,993 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1511 transitions. [2024-11-20 00:11:23,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1511 transitions. [2024-11-20 00:11:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:11:23,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:23,995 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] [2024-11-20 00:11:23,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:11:23,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:23,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash 895026017, now seen corresponding path program 1 times [2024-11-20 00:11:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:23,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323765352] [2024-11-20 00:11:23,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:24,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323765352] [2024-11-20 00:11:24,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323765352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:24,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:24,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:24,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139557514] [2024-11-20 00:11:24,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:24,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:24,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:24,114 INFO L87 Difference]: Start difference. First operand 1099 states and 1511 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:24,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:24,689 INFO L93 Difference]: Finished difference Result 2949 states and 4039 transitions. [2024-11-20 00:11:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:24,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-20 00:11:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:24,699 INFO L225 Difference]: With dead ends: 2949 [2024-11-20 00:11:24,700 INFO L226 Difference]: Without dead ends: 2108 [2024-11-20 00:11:24,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:11:24,704 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 1465 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:24,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 779 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:11:24,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-20 00:11:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1954. [2024-11-20 00:11:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1539 states have (on average 1.3404808317089019) internal successors, (2063), 1570 states have internal predecessors, (2063), 230 states have call successors, (230), 133 states have call predecessors, (230), 183 states have return successors, (383), 257 states have call predecessors, (383), 228 states have call successors, (383) [2024-11-20 00:11:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2676 transitions. [2024-11-20 00:11:24,828 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2676 transitions. Word has length 67 [2024-11-20 00:11:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:24,828 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 2676 transitions. [2024-11-20 00:11:24,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2676 transitions. [2024-11-20 00:11:24,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 00:11:24,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:24,831 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] [2024-11-20 00:11:24,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:11:24,831 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:24,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:24,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1555167926, now seen corresponding path program 1 times [2024-11-20 00:11:24,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:24,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092732169] [2024-11-20 00:11:24,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:24,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:24,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:24,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:24,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092732169] [2024-11-20 00:11:24,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092732169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:24,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:24,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:11:24,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585516150] [2024-11-20 00:11:24,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:24,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:11:24,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:24,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:11:24,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:11:24,883 INFO L87 Difference]: Start difference. First operand 1954 states and 2676 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:25,448 INFO L93 Difference]: Finished difference Result 3659 states and 5098 transitions. [2024-11-20 00:11:25,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:11:25,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-20 00:11:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:25,452 INFO L225 Difference]: With dead ends: 3659 [2024-11-20 00:11:25,452 INFO L226 Difference]: Without dead ends: 235 [2024-11-20 00:11:25,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:11:25,460 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 842 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:25,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 942 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:11:25,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-20 00:11:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-11-20 00:11:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 208 states have (on average 1.5240384615384615) internal successors, (317), 209 states have internal predecessors, (317), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 00:11:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 357 transitions. [2024-11-20 00:11:25,468 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 357 transitions. Word has length 68 [2024-11-20 00:11:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:25,468 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 357 transitions. [2024-11-20 00:11:25,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 357 transitions. [2024-11-20 00:11:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:25,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:25,470 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] [2024-11-20 00:11:25,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:11:25,470 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:25,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1806523402, now seen corresponding path program 1 times [2024-11-20 00:11:25,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:25,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197017534] [2024-11-20 00:11:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:25,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:25,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197017534] [2024-11-20 00:11:25,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197017534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:25,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:25,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:11:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364142354] [2024-11-20 00:11:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:25,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:11:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:11:25,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:11:25,568 INFO L87 Difference]: Start difference. First operand 235 states and 357 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:26,206 INFO L93 Difference]: Finished difference Result 536 states and 830 transitions. [2024-11-20 00:11:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:11:26,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:26,210 INFO L225 Difference]: With dead ends: 536 [2024-11-20 00:11:26,210 INFO L226 Difference]: Without dead ends: 311 [2024-11-20 00:11:26,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:26,213 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 592 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:26,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 469 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:11:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-20 00:11:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 235. [2024-11-20 00:11:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 208 states have (on average 1.5192307692307692) internal successors, (316), 209 states have internal predecessors, (316), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 00:11:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 356 transitions. [2024-11-20 00:11:26,231 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 356 transitions. Word has length 112 [2024-11-20 00:11:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:26,232 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 356 transitions. [2024-11-20 00:11:26,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 356 transitions. [2024-11-20 00:11:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:26,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:26,233 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] [2024-11-20 00:11:26,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:11:26,233 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:26,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1181301496, now seen corresponding path program 1 times [2024-11-20 00:11:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:26,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257868611] [2024-11-20 00:11:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:26,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:26,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:26,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257868611] [2024-11-20 00:11:26,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257868611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:26,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:26,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884509052] [2024-11-20 00:11:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:26,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:26,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:26,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:26,372 INFO L87 Difference]: Start difference. First operand 235 states and 356 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:28,066 INFO L93 Difference]: Finished difference Result 846 states and 1326 transitions. [2024-11-20 00:11:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:28,070 INFO L225 Difference]: With dead ends: 846 [2024-11-20 00:11:28,070 INFO L226 Difference]: Without dead ends: 626 [2024-11-20 00:11:28,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:28,072 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 837 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:28,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1526 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:11:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-20 00:11:28,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 465. [2024-11-20 00:11:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 413 states have (on average 1.5351089588377724) internal successors, (634), 416 states have internal predecessors, (634), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-11-20 00:11:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 715 transitions. [2024-11-20 00:11:28,094 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 715 transitions. Word has length 112 [2024-11-20 00:11:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:28,094 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 715 transitions. [2024-11-20 00:11:28,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 715 transitions. [2024-11-20 00:11:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:28,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:28,095 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] [2024-11-20 00:11:28,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:11:28,096 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:28,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1494690886, now seen corresponding path program 1 times [2024-11-20 00:11:28,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:28,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633154033] [2024-11-20 00:11:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:28,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:28,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633154033] [2024-11-20 00:11:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633154033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:28,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:28,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502364225] [2024-11-20 00:11:28,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:28,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:28,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:28,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:28,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:28,247 INFO L87 Difference]: Start difference. First operand 465 states and 715 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:29,763 INFO L93 Difference]: Finished difference Result 1626 states and 2539 transitions. [2024-11-20 00:11:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:29,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:29,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:29,768 INFO L225 Difference]: With dead ends: 1626 [2024-11-20 00:11:29,768 INFO L226 Difference]: Without dead ends: 1178 [2024-11-20 00:11:29,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:29,770 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 841 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:29,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1421 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:11:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2024-11-20 00:11:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 889. [2024-11-20 00:11:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 793 states have (on average 1.5271122320302648) internal successors, (1211), 798 states have internal predecessors, (1211), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-11-20 00:11:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1362 transitions. [2024-11-20 00:11:29,818 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1362 transitions. Word has length 112 [2024-11-20 00:11:29,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:29,819 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1362 transitions. [2024-11-20 00:11:29,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1362 transitions. [2024-11-20 00:11:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:29,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:29,820 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] [2024-11-20 00:11:29,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:11:29,820 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:29,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash 611181896, now seen corresponding path program 1 times [2024-11-20 00:11:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432458369] [2024-11-20 00:11:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:29,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432458369] [2024-11-20 00:11:29,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432458369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:29,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:29,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:29,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350640552] [2024-11-20 00:11:29,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:29,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:29,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:29,961 INFO L87 Difference]: Start difference. First operand 889 states and 1362 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:31,509 INFO L93 Difference]: Finished difference Result 3152 states and 4906 transitions. [2024-11-20 00:11:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:31,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:31,519 INFO L225 Difference]: With dead ends: 3152 [2024-11-20 00:11:31,519 INFO L226 Difference]: Without dead ends: 2280 [2024-11-20 00:11:31,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:31,523 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 841 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:31,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1422 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:11:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2024-11-20 00:11:31,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1739. [2024-11-20 00:11:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1555 states have (on average 1.522186495176849) internal successors, (2367), 1564 states have internal predecessors, (2367), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-11-20 00:11:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2664 transitions. [2024-11-20 00:11:31,676 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2664 transitions. Word has length 112 [2024-11-20 00:11:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:31,676 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2664 transitions. [2024-11-20 00:11:31,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:31,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2664 transitions. [2024-11-20 00:11:31,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:31,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:31,678 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] [2024-11-20 00:11:31,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:11:31,679 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:31,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:31,679 INFO L85 PathProgramCache]: Analyzing trace with hash 582681606, now seen corresponding path program 1 times [2024-11-20 00:11:31,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:31,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914723078] [2024-11-20 00:11:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:31,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:31,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:31,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914723078] [2024-11-20 00:11:31,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914723078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:31,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077106649] [2024-11-20 00:11:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:31,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:31,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:31,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:31,811 INFO L87 Difference]: Start difference. First operand 1739 states and 2664 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:33,416 INFO L93 Difference]: Finished difference Result 6202 states and 9654 transitions. [2024-11-20 00:11:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:33,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:33,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:33,431 INFO L225 Difference]: With dead ends: 6202 [2024-11-20 00:11:33,432 INFO L226 Difference]: Without dead ends: 4480 [2024-11-20 00:11:33,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:33,436 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 860 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:33,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1420 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:11:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2024-11-20 00:11:33,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 3445. [2024-11-20 00:11:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3085 states have (on average 1.5192868719611021) internal successors, (4687), 3102 states have internal predecessors, (4687), 247 states have call successors, (247), 96 states have call predecessors, (247), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2024-11-20 00:11:33,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5294 transitions. [2024-11-20 00:11:33,605 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5294 transitions. Word has length 112 [2024-11-20 00:11:33,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:33,605 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5294 transitions. [2024-11-20 00:11:33,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:33,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5294 transitions. [2024-11-20 00:11:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:33,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:33,608 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] [2024-11-20 00:11:33,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:11:33,609 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:33,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1357900408, now seen corresponding path program 1 times [2024-11-20 00:11:33,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:33,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972313506] [2024-11-20 00:11:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:33,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:33,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972313506] [2024-11-20 00:11:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972313506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:33,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:33,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385089274] [2024-11-20 00:11:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:33,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:33,742 INFO L87 Difference]: Start difference. First operand 3445 states and 5294 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:35,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:35,750 INFO L93 Difference]: Finished difference Result 12300 states and 19206 transitions. [2024-11-20 00:11:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:35,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:35,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:35,786 INFO L225 Difference]: With dead ends: 12300 [2024-11-20 00:11:35,787 INFO L226 Difference]: Without dead ends: 8872 [2024-11-20 00:11:35,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:35,802 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 839 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:35,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1520 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:11:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8872 states. [2024-11-20 00:11:36,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8872 to 6871. [2024-11-20 00:11:36,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6871 states, 6159 states have (on average 1.5176164961844456) internal successors, (9347), 6192 states have internal predecessors, (9347), 487 states have call successors, (487), 192 states have call predecessors, (487), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2024-11-20 00:11:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6871 states to 6871 states and 10628 transitions. [2024-11-20 00:11:36,209 INFO L78 Accepts]: Start accepts. Automaton has 6871 states and 10628 transitions. Word has length 112 [2024-11-20 00:11:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:36,211 INFO L471 AbstractCegarLoop]: Abstraction has 6871 states and 10628 transitions. [2024-11-20 00:11:36,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6871 states and 10628 transitions. [2024-11-20 00:11:36,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:36,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:36,221 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] [2024-11-20 00:11:36,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:11:36,221 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:36,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash 519162822, now seen corresponding path program 1 times [2024-11-20 00:11:36,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:36,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225386457] [2024-11-20 00:11:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:36,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:36,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:36,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225386457] [2024-11-20 00:11:36,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225386457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:36,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:36,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:36,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115169473] [2024-11-20 00:11:36,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:36,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:36,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:36,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:36,350 INFO L87 Difference]: Start difference. First operand 6871 states and 10628 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:38,685 INFO L93 Difference]: Finished difference Result 24494 states and 38498 transitions. [2024-11-20 00:11:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:38,749 INFO L225 Difference]: With dead ends: 24494 [2024-11-20 00:11:38,749 INFO L226 Difference]: Without dead ends: 17640 [2024-11-20 00:11:38,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:38,771 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 839 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:38,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1521 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:11:38,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17640 states. [2024-11-20 00:11:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17640 to 13753. [2024-11-20 00:11:39,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13753 states, 12337 states have (on average 1.516657210018643) internal successors, (18711), 12402 states have internal predecessors, (18711), 967 states have call successors, (967), 384 states have call predecessors, (967), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2024-11-20 00:11:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13753 states to 13753 states and 21502 transitions. [2024-11-20 00:11:39,626 INFO L78 Accepts]: Start accepts. Automaton has 13753 states and 21502 transitions. Word has length 112 [2024-11-20 00:11:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:39,627 INFO L471 AbstractCegarLoop]: Abstraction has 13753 states and 21502 transitions. [2024-11-20 00:11:39,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 13753 states and 21502 transitions. [2024-11-20 00:11:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:39,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:39,638 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] [2024-11-20 00:11:39,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:11:39,638 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:39,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:39,639 INFO L85 PathProgramCache]: Analyzing trace with hash -251570744, now seen corresponding path program 1 times [2024-11-20 00:11:39,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:39,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306311374] [2024-11-20 00:11:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:39,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:39,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:39,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306311374] [2024-11-20 00:11:39,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306311374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:39,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:39,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33623638] [2024-11-20 00:11:39,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:39,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:39,779 INFO L87 Difference]: Start difference. First operand 13753 states and 21502 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:43,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:43,508 INFO L93 Difference]: Finished difference Result 54832 states and 86640 transitions. [2024-11-20 00:11:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:43,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:43,631 INFO L225 Difference]: With dead ends: 54832 [2024-11-20 00:11:43,631 INFO L226 Difference]: Without dead ends: 41096 [2024-11-20 00:11:43,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:43,787 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 908 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:43,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1513 Invalid, 2503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 00:11:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41096 states. [2024-11-20 00:11:45,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41096 to 27387. [2024-11-20 00:11:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27387 states, 24627 states have (on average 1.5187802005928452) internal successors, (37403), 24756 states have internal predecessors, (37403), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2024-11-20 00:11:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27387 states to 27387 states and 43572 transitions. [2024-11-20 00:11:45,845 INFO L78 Accepts]: Start accepts. Automaton has 27387 states and 43572 transitions. Word has length 112 [2024-11-20 00:11:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:45,845 INFO L471 AbstractCegarLoop]: Abstraction has 27387 states and 43572 transitions. [2024-11-20 00:11:45,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 27387 states and 43572 transitions. [2024-11-20 00:11:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:45,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:45,862 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] [2024-11-20 00:11:45,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:11:45,862 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:45,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1246264442, now seen corresponding path program 1 times [2024-11-20 00:11:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127063373] [2024-11-20 00:11:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:45,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:45,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:45,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127063373] [2024-11-20 00:11:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127063373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:45,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:45,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:45,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514565618] [2024-11-20 00:11:45,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:45,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:45,981 INFO L87 Difference]: Start difference. First operand 27387 states and 43572 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:51,838 INFO L93 Difference]: Finished difference Result 105653 states and 169924 transitions. [2024-11-20 00:11:51,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:51,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:11:51,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:52,113 INFO L225 Difference]: With dead ends: 105653 [2024-11-20 00:11:52,114 INFO L226 Difference]: Without dead ends: 78283 [2024-11-20 00:11:52,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:52,195 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 901 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:52,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1512 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:11:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78283 states. [2024-11-20 00:11:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78283 to 54717. [2024-11-20 00:11:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54717 states, 49333 states have (on average 1.522368394381043) internal successors, (75103), 49590 states have internal predecessors, (75103), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2024-11-20 00:11:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54717 states to 54717 states and 89358 transitions. [2024-11-20 00:11:56,705 INFO L78 Accepts]: Start accepts. Automaton has 54717 states and 89358 transitions. Word has length 112 [2024-11-20 00:11:56,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:56,706 INFO L471 AbstractCegarLoop]: Abstraction has 54717 states and 89358 transitions. [2024-11-20 00:11:56,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 54717 states and 89358 transitions. [2024-11-20 00:11:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:11:56,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:56,736 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] [2024-11-20 00:11:56,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:11:56,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:56,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1090128068, now seen corresponding path program 1 times [2024-11-20 00:11:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:56,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199316836] [2024-11-20 00:11:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:56,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:11:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:11:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:11:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:11:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:56,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:56,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199316836] [2024-11-20 00:11:56,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199316836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:56,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:56,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:56,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854990253] [2024-11-20 00:11:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:56,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:56,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:56,861 INFO L87 Difference]: Start difference. First operand 54717 states and 89358 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:12:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:12:01,798 INFO L93 Difference]: Finished difference Result 124393 states and 209063 transitions. [2024-11-20 00:12:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:12:01,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-20 00:12:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:12:02,014 INFO L225 Difference]: With dead ends: 124393 [2024-11-20 00:12:02,014 INFO L226 Difference]: Without dead ends: 69691 [2024-11-20 00:12:02,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:12:02,112 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 743 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:12:02,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 639 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:12:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69691 states. [2024-11-20 00:12:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69691 to 54717. [2024-11-20 00:12:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54717 states, 49333 states have (on average 1.5171588997222953) internal successors, (74846), 49590 states have internal predecessors, (74846), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2024-11-20 00:12:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54717 states to 54717 states and 89101 transitions. [2024-11-20 00:12:06,803 INFO L78 Accepts]: Start accepts. Automaton has 54717 states and 89101 transitions. Word has length 112 [2024-11-20 00:12:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:12:06,804 INFO L471 AbstractCegarLoop]: Abstraction has 54717 states and 89101 transitions. [2024-11-20 00:12:06,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:12:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 54717 states and 89101 transitions. [2024-11-20 00:12:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 00:12:06,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:12:06,835 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] [2024-11-20 00:12:06,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:12:06,835 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:12:06,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:12:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1328356410, now seen corresponding path program 1 times [2024-11-20 00:12:06,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:12:06,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939316359] [2024-11-20 00:12:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:12:06,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:12:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:12:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:12:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 00:12:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:12:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 00:12:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:12:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:12:06,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:12:06,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939316359] [2024-11-20 00:12:06,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939316359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:12:06,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:12:06,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:12:06,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324940105] [2024-11-20 00:12:06,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:12:06,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:12:06,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:12:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:12:06,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:12:06,999 INFO L87 Difference]: Start difference. First operand 54717 states and 89101 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)