./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.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 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:58:53,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:58:53,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:58:53,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:58:53,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:58:53,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:58:53,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:58:53,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:58:53,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:58:53,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:58:53,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:58:53,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:58:53,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:58:53,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:58:53,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:58:53,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:58:53,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:58:53,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:58:53,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:58:53,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:58:53,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:58:53,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:58:53,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:58:53,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:58:53,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:58:53,713 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:58:53,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:58:53,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:58:53,713 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:58:53,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:58:53,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:58:53,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:58:53,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:53,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:58:53,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:58:53,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:58:53,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:58:53,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:58:53,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:58:53,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:58:53,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:58:53,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:58:53,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 [2024-11-11 22:58:53,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:58:54,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:58:54,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:58:54,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:58:54,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:58:54,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-11 22:58:55,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:58:55,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:58:55,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-11 22:58:55,791 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229698cb2/ac875b9cd1d84f98b0e6205f73fb9f2f/FLAGf547f2897 [2024-11-11 22:58:55,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229698cb2/ac875b9cd1d84f98b0e6205f73fb9f2f [2024-11-11 22:58:55,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:58:55,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:58:55,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:55,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:58:55,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:58:55,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:55" (1/1) ... [2024-11-11 22:58:55,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f053a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:55, skipping insertion in model container [2024-11-11 22:58:55,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:55" (1/1) ... [2024-11-11 22:58:55,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:58:56,053 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.05.cil-2.c[911,924] [2024-11-11 22:58:56,161 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.05.cil-2.c[8416,8429] [2024-11-11 22:58:56,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:56,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:58:56,242 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.05.cil-2.c[911,924] [2024-11-11 22:58:56,271 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.05.cil-2.c[8416,8429] [2024-11-11 22:58:56,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:56,323 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:58:56,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56 WrapperNode [2024-11-11 22:58:56,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:56,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:56,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:58:56,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:58:56,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,381 INFO L138 Inliner]: procedures = 65, calls = 77, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 692 [2024-11-11 22:58:56,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:56,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:58:56,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:58:56,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:58:56,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,430 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]. [2024-11-11 22:58:56,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:58:56,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:58:56,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:58:56,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:58:56,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (1/1) ... [2024-11-11 22:58:56,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:56,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:56,512 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) [2024-11-11 22:58:56,516 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 [2024-11-11 22:58:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:58:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:58:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:58:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:58:56,564 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:58:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:58:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:58:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:58:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:58:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:58:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:58:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:58:56,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:58:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:58:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:58:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:58:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:58:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:58:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:58:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:58:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:58:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:58:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:58:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:58:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:58:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:58:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:58:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:58:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:58:56,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:58:56,569 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:58:56,569 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:58:56,569 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:58:56,570 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:58:56,703 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:58:56,705 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:58:57,321 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-11 22:58:57,322 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; [2024-11-11 22:58:57,456 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-11 22:58:57,457 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:58:57,479 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:58:57,480 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-11 22:58:57,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:57 BoogieIcfgContainer [2024-11-11 22:58:57,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:58:57,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:58:57,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:58:57,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:58:57,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:58:55" (1/3) ... [2024-11-11 22:58:57,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:57, skipping insertion in model container [2024-11-11 22:58:57,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:56" (2/3) ... [2024-11-11 22:58:57,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c38bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:57, skipping insertion in model container [2024-11-11 22:58:57,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:57" (3/3) ... [2024-11-11 22:58:57,493 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-11 22:58:57,510 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:58:57,511 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:58:57,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:58:57,601 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;@311f2da8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:58:57,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:58:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 283 states have (on average 1.5901060070671378) internal successors, (450), 291 states have internal predecessors, (450), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-11 22:58:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:57,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:57,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:57,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash -280547254, now seen corresponding path program 1 times [2024-11-11 22:58:57,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:57,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866382065] [2024-11-11 22:58:57,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:58,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866382065] [2024-11-11 22:58:58,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866382065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:58,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:58,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:58:58,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595591638] [2024-11-11 22:58:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:58,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:58:58,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:58,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:58:58,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:58:58,317 INFO L87 Difference]: Start difference. First operand has 338 states, 283 states have (on average 1.5901060070671378) internal successors, (450), 291 states have internal predecessors, (450), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) 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) [2024-11-11 22:58:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:59,568 INFO L93 Difference]: Finished difference Result 805 states and 1249 transitions. [2024-11-11 22:58:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:58:59,575 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 [2024-11-11 22:58:59,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:59,589 INFO L225 Difference]: With dead ends: 805 [2024-11-11 22:58:59,589 INFO L226 Difference]: Without dead ends: 478 [2024-11-11 22:58:59,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:58:59,602 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 868 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:59,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1613 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:58:59,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-11 22:58:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 439. [2024-11-11 22:58:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 365 states have (on average 1.4821917808219178) internal successors, (541), 372 states have internal predecessors, (541), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-11-11 22:58:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 642 transitions. [2024-11-11 22:58:59,722 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 642 transitions. Word has length 65 [2024-11-11 22:58:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:59,723 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 642 transitions. [2024-11-11 22:58:59,723 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) [2024-11-11 22:58:59,723 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 642 transitions. [2024-11-11 22:58:59,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:59,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:59,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:59,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:58:59,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:59,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1257792776, now seen corresponding path program 1 times [2024-11-11 22:58:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:59,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054103018] [2024-11-11 22:58:59,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:59:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:00,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:00,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054103018] [2024-11-11 22:59:00,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054103018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:00,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:00,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:59:00,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867987305] [2024-11-11 22:59:00,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:00,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:59:00,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:59:00,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:59:00,010 INFO L87 Difference]: Start difference. First operand 439 states and 642 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) [2024-11-11 22:59:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:01,258 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2024-11-11 22:59:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:59:01,259 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 [2024-11-11 22:59:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:01,264 INFO L225 Difference]: With dead ends: 836 [2024-11-11 22:59:01,264 INFO L226 Difference]: Without dead ends: 627 [2024-11-11 22:59:01,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:59:01,267 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 1147 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:01,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 1547 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-11 22:59:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 551. [2024-11-11 22:59:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 455 states have (on average 1.4659340659340658) internal successors, (667), 464 states have internal predecessors, (667), 63 states have call successors, (63), 29 states have call predecessors, (63), 31 states have return successors, (72), 61 states have call predecessors, (72), 59 states have call successors, (72) [2024-11-11 22:59:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 802 transitions. [2024-11-11 22:59:01,354 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 802 transitions. Word has length 65 [2024-11-11 22:59:01,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:01,355 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 802 transitions. [2024-11-11 22:59:01,355 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) [2024-11-11 22:59:01,355 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 802 transitions. [2024-11-11 22:59:01,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:59:01,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:01,363 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:01,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:59:01,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:01,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:01,364 INFO L85 PathProgramCache]: Analyzing trace with hash -770793334, now seen corresponding path program 1 times [2024-11-11 22:59:01,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:01,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535228478] [2024-11-11 22:59:01,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:01,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:59:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:59:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:59:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:01,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:01,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535228478] [2024-11-11 22:59:01,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535228478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:01,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855070191] [2024-11-11 22:59:01,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:01,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:01,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:01,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:01,532 INFO L87 Difference]: Start difference. First operand 551 states and 802 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) [2024-11-11 22:59:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:02,491 INFO L93 Difference]: Finished difference Result 1223 states and 1744 transitions. [2024-11-11 22:59:02,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:59:02,492 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 [2024-11-11 22:59:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:02,499 INFO L225 Difference]: With dead ends: 1223 [2024-11-11 22:59:02,502 INFO L226 Difference]: Without dead ends: 908 [2024-11-11 22:59:02,503 INFO L434 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 [2024-11-11 22:59:02,504 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 1036 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:02,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 1408 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-11-11 22:59:02,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 832. [2024-11-11 22:59:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 681 states have (on average 1.4302496328928047) internal successors, (974), 694 states have internal predecessors, (974), 93 states have call successors, (93), 50 states have call predecessors, (93), 56 states have return successors, (110), 91 states have call predecessors, (110), 89 states have call successors, (110) [2024-11-11 22:59:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1177 transitions. [2024-11-11 22:59:02,569 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1177 transitions. Word has length 65 [2024-11-11 22:59:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:02,570 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1177 transitions. [2024-11-11 22:59:02,570 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) [2024-11-11 22:59:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1177 transitions. [2024-11-11 22:59:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:59:02,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:02,573 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:02,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:59:02,573 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:02,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2048126841, now seen corresponding path program 1 times [2024-11-11 22:59:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:02,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195526348] [2024-11-11 22:59:02,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:59:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:59:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:02,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195526348] [2024-11-11 22:59:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195526348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:02,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:02,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:59:02,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614982906] [2024-11-11 22:59:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:02,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:59:02,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:02,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:59:02,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:59:02,740 INFO L87 Difference]: Start difference. First operand 832 states and 1177 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-11 22:59:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:03,705 INFO L93 Difference]: Finished difference Result 1500 states and 2104 transitions. [2024-11-11 22:59:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:59:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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 66 [2024-11-11 22:59:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:03,711 INFO L225 Difference]: With dead ends: 1500 [2024-11-11 22:59:03,711 INFO L226 Difference]: Without dead ends: 904 [2024-11-11 22:59:03,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:59:03,714 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 386 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:03,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1994 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:03,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2024-11-11 22:59:03,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 847. [2024-11-11 22:59:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 693 states have (on average 1.4184704184704184) internal successors, (983), 706 states have internal predecessors, (983), 93 states have call successors, (93), 50 states have call predecessors, (93), 59 states have return successors, (113), 94 states have call predecessors, (113), 89 states have call successors, (113) [2024-11-11 22:59:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1189 transitions. [2024-11-11 22:59:03,766 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1189 transitions. Word has length 66 [2024-11-11 22:59:03,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:03,767 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1189 transitions. [2024-11-11 22:59:03,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-11 22:59:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1189 transitions. [2024-11-11 22:59:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:59:03,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:03,769 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:03,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:59:03,769 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:03,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1217481157, now seen corresponding path program 1 times [2024-11-11 22:59:03,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:03,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322317476] [2024-11-11 22:59:03,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:03,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:59:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:59:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:03,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322317476] [2024-11-11 22:59:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322317476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:03,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:59:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090303804] [2024-11-11 22:59:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:03,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:59:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:03,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:59:03,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:59:03,917 INFO L87 Difference]: Start difference. First operand 847 states and 1189 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) [2024-11-11 22:59:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:06,094 INFO L93 Difference]: Finished difference Result 3052 states and 4310 transitions. [2024-11-11 22:59:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:59:06,095 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 [2024-11-11 22:59:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:06,103 INFO L225 Difference]: With dead ends: 3052 [2024-11-11 22:59:06,103 INFO L226 Difference]: Without dead ends: 1210 [2024-11-11 22:59:06,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:59:06,109 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 1757 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:06,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 2161 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:59:06,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-11 22:59:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1055. [2024-11-11 22:59:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 845 states have (on average 1.3810650887573965) internal successors, (1167), 862 states have internal predecessors, (1167), 123 states have call successors, (123), 71 states have call predecessors, (123), 85 states have return successors, (162), 125 states have call predecessors, (162), 119 states have call successors, (162) [2024-11-11 22:59:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1452 transitions. [2024-11-11 22:59:06,211 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1452 transitions. Word has length 66 [2024-11-11 22:59:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:06,212 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1452 transitions. [2024-11-11 22:59:06,212 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) [2024-11-11 22:59:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1452 transitions. [2024-11-11 22:59:06,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:59:06,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:06,214 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:06,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:59:06,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:06,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash 2123661252, now seen corresponding path program 1 times [2024-11-11 22:59:06,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477617474] [2024-11-11 22:59:06,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:06,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:06,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:06,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477617474] [2024-11-11 22:59:06,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477617474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:06,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:06,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:59:06,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999517482] [2024-11-11 22:59:06,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:06,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:59:06,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:06,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:59:06,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:59:06,379 INFO L87 Difference]: Start difference. First operand 1055 states and 1452 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) [2024-11-11 22:59:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:07,346 INFO L93 Difference]: Finished difference Result 2011 states and 2758 transitions. [2024-11-11 22:59:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:59:07,346 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 [2024-11-11 22:59:07,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:07,354 INFO L225 Difference]: With dead ends: 2011 [2024-11-11 22:59:07,354 INFO L226 Difference]: Without dead ends: 1192 [2024-11-11 22:59:07,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:07,358 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 383 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:07,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1945 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:59:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-11 22:59:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1100. [2024-11-11 22:59:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 881 states have (on average 1.3654937570942112) internal successors, (1203), 898 states have internal predecessors, (1203), 123 states have call successors, (123), 71 states have call predecessors, (123), 94 states have return successors, (171), 134 states have call predecessors, (171), 119 states have call successors, (171) [2024-11-11 22:59:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1497 transitions. [2024-11-11 22:59:07,433 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1497 transitions. Word has length 67 [2024-11-11 22:59:07,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:07,435 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1497 transitions. [2024-11-11 22:59:07,436 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) [2024-11-11 22:59:07,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1497 transitions. [2024-11-11 22:59:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:59:07,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:07,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:07,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:59:07,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:07,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash -785102650, now seen corresponding path program 1 times [2024-11-11 22:59:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:07,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465171542] [2024-11-11 22:59:07,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:07,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:07,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465171542] [2024-11-11 22:59:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465171542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:07,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:59:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312036055] [2024-11-11 22:59:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:07,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:59:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:59:07,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:59:07,616 INFO L87 Difference]: Start difference. First operand 1100 states and 1497 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-11-11 22:59:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:08,698 INFO L93 Difference]: Finished difference Result 2080 states and 2800 transitions. [2024-11-11 22:59:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 22:59:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 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 67 [2024-11-11 22:59:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:08,707 INFO L225 Difference]: With dead ends: 2080 [2024-11-11 22:59:08,707 INFO L226 Difference]: Without dead ends: 1303 [2024-11-11 22:59:08,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-11 22:59:08,711 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 1172 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:08,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1205 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-11-11 22:59:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1109. [2024-11-11 22:59:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 890 states have (on average 1.3595505617977528) internal successors, (1210), 905 states have internal predecessors, (1210), 124 states have call successors, (124), 72 states have call predecessors, (124), 93 states have return successors, (167), 135 states have call predecessors, (167), 120 states have call successors, (167) [2024-11-11 22:59:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1501 transitions. [2024-11-11 22:59:08,786 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1501 transitions. Word has length 67 [2024-11-11 22:59:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:08,787 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1501 transitions. [2024-11-11 22:59:08,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 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) [2024-11-11 22:59:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1501 transitions. [2024-11-11 22:59:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:59:08,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:08,804 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:08,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:59:08,805 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:08,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:08,806 INFO L85 PathProgramCache]: Analyzing trace with hash -919116156, now seen corresponding path program 1 times [2024-11-11 22:59:08,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:08,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284240980] [2024-11-11 22:59:08,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:08,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:08,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284240980] [2024-11-11 22:59:08,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284240980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:08,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:08,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328263824] [2024-11-11 22:59:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:08,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:08,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:08,924 INFO L87 Difference]: Start difference. First operand 1109 states and 1501 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) [2024-11-11 22:59:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:09,729 INFO L93 Difference]: Finished difference Result 2994 states and 4023 transitions. [2024-11-11 22:59:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:59:09,729 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 [2024-11-11 22:59:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:09,744 INFO L225 Difference]: With dead ends: 2994 [2024-11-11 22:59:09,744 INFO L226 Difference]: Without dead ends: 2124 [2024-11-11 22:59:09,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:59:09,749 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 1135 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:09,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 967 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:59:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2024-11-11 22:59:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1958. [2024-11-11 22:59:09,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1544 states have (on average 1.3205958549222798) internal successors, (2039), 1572 states have internal predecessors, (2039), 228 states have call successors, (228), 136 states have call predecessors, (228), 184 states have return successors, (357), 256 states have call predecessors, (357), 224 states have call successors, (357) [2024-11-11 22:59:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2624 transitions. [2024-11-11 22:59:09,904 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2624 transitions. Word has length 67 [2024-11-11 22:59:09,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:09,906 INFO L471 AbstractCegarLoop]: Abstraction has 1958 states and 2624 transitions. [2024-11-11 22:59:09,906 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) [2024-11-11 22:59:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2624 transitions. [2024-11-11 22:59:09,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-11 22:59:09,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:09,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:09,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:59:09,910 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:09,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:09,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1151381996, now seen corresponding path program 1 times [2024-11-11 22:59:09,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:09,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145473730] [2024-11-11 22:59:09,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:09,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:09,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145473730] [2024-11-11 22:59:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145473730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:09,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:09,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334617177] [2024-11-11 22:59:09,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:09,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:09,981 INFO L87 Difference]: Start difference. First operand 1958 states and 2624 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) [2024-11-11 22:59:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:10,556 INFO L93 Difference]: Finished difference Result 3681 states and 4980 transitions. [2024-11-11 22:59:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:59:10,557 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 [2024-11-11 22:59:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:10,561 INFO L225 Difference]: With dead ends: 3681 [2024-11-11 22:59:10,561 INFO L226 Difference]: Without dead ends: 216 [2024-11-11 22:59:10,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:59:10,572 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 956 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:10,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 687 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:59:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-11 22:59:10,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-11 22:59:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 188 states have (on average 1.5265957446808511) internal successors, (287), 190 states have internal predecessors, (287), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:59:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 327 transitions. [2024-11-11 22:59:10,584 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 327 transitions. Word has length 68 [2024-11-11 22:59:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:10,585 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 327 transitions. [2024-11-11 22:59:10,585 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) [2024-11-11 22:59:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 327 transitions. [2024-11-11 22:59:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:10,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:10,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:10,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:59:10,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:10,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash 402823385, now seen corresponding path program 1 times [2024-11-11 22:59:10,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:10,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557304499] [2024-11-11 22:59:10,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:10,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557304499] [2024-11-11 22:59:10,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557304499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:10,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:10,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:59:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558889390] [2024-11-11 22:59:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:10,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:59:10,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:10,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:59:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:59:10,693 INFO L87 Difference]: Start difference. First operand 216 states and 327 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:11,387 INFO L93 Difference]: Finished difference Result 489 states and 755 transitions. [2024-11-11 22:59:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:59:11,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:11,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:11,391 INFO L225 Difference]: With dead ends: 489 [2024-11-11 22:59:11,391 INFO L226 Difference]: Without dead ends: 281 [2024-11-11 22:59:11,392 INFO L434 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 [2024-11-11 22:59:11,393 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 528 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:11,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 447 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:59:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-11 22:59:11,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 216. [2024-11-11 22:59:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 188 states have (on average 1.5212765957446808) internal successors, (286), 190 states have internal predecessors, (286), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:59:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 326 transitions. [2024-11-11 22:59:11,410 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 326 transitions. Word has length 102 [2024-11-11 22:59:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:11,410 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 326 transitions. [2024-11-11 22:59:11,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 326 transitions. [2024-11-11 22:59:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:11,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:11,412 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:11,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:59:11,412 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:11,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1286332375, now seen corresponding path program 1 times [2024-11-11 22:59:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004308730] [2024-11-11 22:59:11,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:11,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:11,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:11,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004308730] [2024-11-11 22:59:11,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004308730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:11,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:11,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370412759] [2024-11-11 22:59:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:11,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:11,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:11,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:11,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:11,556 INFO L87 Difference]: Start difference. First operand 216 states and 326 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:12,772 INFO L93 Difference]: Finished difference Result 754 states and 1169 transitions. [2024-11-11 22:59:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:59:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:12,777 INFO L225 Difference]: With dead ends: 754 [2024-11-11 22:59:12,777 INFO L226 Difference]: Without dead ends: 552 [2024-11-11 22:59:12,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:59:12,779 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 784 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:12,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 759 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:12,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-11 22:59:12,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 421. [2024-11-11 22:59:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 372 states have (on average 1.5349462365591398) internal successors, (571), 375 states have internal predecessors, (571), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-11 22:59:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 642 transitions. [2024-11-11 22:59:12,808 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 642 transitions. Word has length 102 [2024-11-11 22:59:12,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:12,808 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 642 transitions. [2024-11-11 22:59:12,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 642 transitions. [2024-11-11 22:59:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:12,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:12,812 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:12,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:59:12,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:12,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash -397482797, now seen corresponding path program 1 times [2024-11-11 22:59:12,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:12,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130628377] [2024-11-11 22:59:12,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:12,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:12,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:12,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130628377] [2024-11-11 22:59:12,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130628377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:12,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546480812] [2024-11-11 22:59:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:12,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:12,978 INFO L87 Difference]: Start difference. First operand 421 states and 642 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:14,611 INFO L93 Difference]: Finished difference Result 1236 states and 1918 transitions. [2024-11-11 22:59:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:14,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:14,618 INFO L225 Difference]: With dead ends: 1236 [2024-11-11 22:59:14,618 INFO L226 Difference]: Without dead ends: 829 [2024-11-11 22:59:14,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:14,620 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 795 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:14,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1451 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:59:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-11-11 22:59:14,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 614. [2024-11-11 22:59:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 544 states have (on average 1.5294117647058822) internal successors, (832), 548 states have internal predecessors, (832), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:59:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 933 transitions. [2024-11-11 22:59:14,688 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 933 transitions. Word has length 102 [2024-11-11 22:59:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:14,688 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 933 transitions. [2024-11-11 22:59:14,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 933 transitions. [2024-11-11 22:59:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:14,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:14,691 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:14,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:59:14,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:14,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2018353553, now seen corresponding path program 1 times [2024-11-11 22:59:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93404516] [2024-11-11 22:59:14,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:14,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:14,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93404516] [2024-11-11 22:59:14,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93404516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:14,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:14,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839697480] [2024-11-11 22:59:14,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:14,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:14,865 INFO L87 Difference]: Start difference. First operand 614 states and 933 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:16,381 INFO L93 Difference]: Finished difference Result 1944 states and 3009 transitions. [2024-11-11 22:59:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:16,392 INFO L225 Difference]: With dead ends: 1944 [2024-11-11 22:59:16,393 INFO L226 Difference]: Without dead ends: 1344 [2024-11-11 22:59:16,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:16,397 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 790 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:16,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 1449 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:59:16,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2024-11-11 22:59:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1003. [2024-11-11 22:59:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 891 states have (on average 1.5252525252525253) internal successors, (1359), 897 states have internal predecessors, (1359), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-11 22:59:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1524 transitions. [2024-11-11 22:59:16,470 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1524 transitions. Word has length 102 [2024-11-11 22:59:16,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:16,471 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1524 transitions. [2024-11-11 22:59:16,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1524 transitions. [2024-11-11 22:59:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:16,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:16,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:16,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:59:16,473 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:16,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash -951757549, now seen corresponding path program 1 times [2024-11-11 22:59:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:16,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513317034] [2024-11-11 22:59:16,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:16,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:16,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513317034] [2024-11-11 22:59:16,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513317034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:16,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:16,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722336528] [2024-11-11 22:59:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:16,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:16,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:16,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:16,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:16,629 INFO L87 Difference]: Start difference. First operand 1003 states and 1524 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:18,164 INFO L93 Difference]: Finished difference Result 3319 states and 5124 transitions. [2024-11-11 22:59:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:18,177 INFO L225 Difference]: With dead ends: 3319 [2024-11-11 22:59:18,177 INFO L226 Difference]: Without dead ends: 2330 [2024-11-11 22:59:18,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:18,181 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 789 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:18,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1449 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:59:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2024-11-11 22:59:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 1784. [2024-11-11 22:59:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1588 states have (on average 1.5220403022670026) internal successors, (2417), 1598 states have internal predecessors, (2417), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-11 22:59:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2716 transitions. [2024-11-11 22:59:18,309 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2716 transitions. Word has length 102 [2024-11-11 22:59:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:18,310 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2716 transitions. [2024-11-11 22:59:18,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2716 transitions. [2024-11-11 22:59:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:18,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:18,314 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:18,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:59:18,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:18,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:18,315 INFO L85 PathProgramCache]: Analyzing trace with hash 615000401, now seen corresponding path program 1 times [2024-11-11 22:59:18,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:18,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309375801] [2024-11-11 22:59:18,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:18,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:18,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:18,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309375801] [2024-11-11 22:59:18,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309375801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:18,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:18,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:18,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053085207] [2024-11-11 22:59:18,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:18,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:18,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:18,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:18,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:18,494 INFO L87 Difference]: Start difference. First operand 1784 states and 2716 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:20,219 INFO L93 Difference]: Finished difference Result 6070 states and 9374 transitions. [2024-11-11 22:59:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:20,242 INFO L225 Difference]: With dead ends: 6070 [2024-11-11 22:59:20,242 INFO L226 Difference]: Without dead ends: 4300 [2024-11-11 22:59:20,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:20,250 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 788 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:20,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1449 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:59:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2024-11-11 22:59:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 3353. [2024-11-11 22:59:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3353 states, 2989 states have (on average 1.5199063231850116) internal successors, (4543), 3007 states have internal predecessors, (4543), 245 states have call successors, (245), 103 states have call predecessors, (245), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-11 22:59:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3353 states to 3353 states and 5128 transitions. [2024-11-11 22:59:20,532 INFO L78 Accepts]: Start accepts. Automaton has 3353 states and 5128 transitions. Word has length 102 [2024-11-11 22:59:20,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:20,532 INFO L471 AbstractCegarLoop]: Abstraction has 3353 states and 5128 transitions. [2024-11-11 22:59:20,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:20,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3353 states and 5128 transitions. [2024-11-11 22:59:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:20,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:20,536 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:20,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:59:20,536 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:20,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash -442837677, now seen corresponding path program 1 times [2024-11-11 22:59:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:20,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932731521] [2024-11-11 22:59:20,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:20,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:20,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932731521] [2024-11-11 22:59:20,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932731521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:20,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:20,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:20,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544075508] [2024-11-11 22:59:20,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:20,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:20,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:20,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:20,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:20,698 INFO L87 Difference]: Start difference. First operand 3353 states and 5128 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:22,829 INFO L93 Difference]: Finished difference Result 12837 states and 19826 transitions. [2024-11-11 22:59:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:22,891 INFO L225 Difference]: With dead ends: 12837 [2024-11-11 22:59:22,891 INFO L226 Difference]: Without dead ends: 9498 [2024-11-11 22:59:22,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:22,907 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 885 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:22,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 913 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:59:22,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9498 states. [2024-11-11 22:59:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9498 to 6458. [2024-11-11 22:59:23,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6458 states, 5774 states have (on average 1.5214755801870454) internal successors, (8785), 5808 states have internal predecessors, (8785), 453 states have call successors, (453), 199 states have call predecessors, (453), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-11 22:59:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6458 states to 6458 states and 9964 transitions. [2024-11-11 22:59:23,470 INFO L78 Accepts]: Start accepts. Automaton has 6458 states and 9964 transitions. Word has length 102 [2024-11-11 22:59:23,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:23,471 INFO L471 AbstractCegarLoop]: Abstraction has 6458 states and 9964 transitions. [2024-11-11 22:59:23,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:23,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6458 states and 9964 transitions. [2024-11-11 22:59:23,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:23,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:23,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:23,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:59:23,477 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:23,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:23,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1585340143, now seen corresponding path program 1 times [2024-11-11 22:59:23,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183521640] [2024-11-11 22:59:23,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:23,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183521640] [2024-11-11 22:59:23,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183521640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:23,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:23,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:23,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833391447] [2024-11-11 22:59:23,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:23,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:23,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:23,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:23,621 INFO L87 Difference]: Start difference. First operand 6458 states and 9964 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:25,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:25,929 INFO L93 Difference]: Finished difference Result 24580 states and 38232 transitions. [2024-11-11 22:59:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:25,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:25,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:26,004 INFO L225 Difference]: With dead ends: 24580 [2024-11-11 22:59:26,004 INFO L226 Difference]: Without dead ends: 18136 [2024-11-11 22:59:26,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:26,033 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 959 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:26,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1435 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18136 states. [2024-11-11 22:59:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18136 to 12331. [2024-11-11 22:59:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12331 states, 11023 states have (on average 1.5156490973419214) internal successors, (16707), 11089 states have internal predecessors, (16707), 853 states have call successors, (853), 391 states have call predecessors, (853), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-11 22:59:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12331 states to 12331 states and 19204 transitions. [2024-11-11 22:59:27,168 INFO L78 Accepts]: Start accepts. Automaton has 12331 states and 19204 transitions. Word has length 102 [2024-11-11 22:59:27,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:27,168 INFO L471 AbstractCegarLoop]: Abstraction has 12331 states and 19204 transitions. [2024-11-11 22:59:27,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 12331 states and 19204 transitions. [2024-11-11 22:59:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:27,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:27,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:27,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:59:27,181 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:27,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1345100397, now seen corresponding path program 1 times [2024-11-11 22:59:27,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:27,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778233208] [2024-11-11 22:59:27,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:27,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778233208] [2024-11-11 22:59:27,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778233208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:27,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:27,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140278106] [2024-11-11 22:59:27,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:27,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:27,339 INFO L87 Difference]: Start difference. First operand 12331 states and 19204 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:31,011 INFO L93 Difference]: Finished difference Result 46515 states and 72990 transitions. [2024-11-11 22:59:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:31,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:31,155 INFO L225 Difference]: With dead ends: 46515 [2024-11-11 22:59:31,156 INFO L226 Difference]: Without dead ends: 34198 [2024-11-11 22:59:31,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:31,199 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 824 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:31,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1439 Invalid, 1969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:59:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34198 states. [2024-11-11 22:59:33,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34198 to 24364. [2024-11-11 22:59:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 21840 states have (on average 1.5181776556776556) internal successors, (33157), 21970 states have internal predecessors, (33157), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-11 22:59:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 38712 transitions. [2024-11-11 22:59:33,449 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 38712 transitions. Word has length 102 [2024-11-11 22:59:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:33,449 INFO L471 AbstractCegarLoop]: Abstraction has 24364 states and 38712 transitions. [2024-11-11 22:59:33,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 38712 transitions. [2024-11-11 22:59:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:33,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:33,766 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:33,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:59:33,767 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:33,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -506066735, now seen corresponding path program 1 times [2024-11-11 22:59:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:33,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548000320] [2024-11-11 22:59:33,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:33,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:33,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:33,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548000320] [2024-11-11 22:59:33,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548000320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:33,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:33,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127576690] [2024-11-11 22:59:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:33,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:33,896 INFO L87 Difference]: Start difference. First operand 24364 states and 38712 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:39,132 INFO L93 Difference]: Finished difference Result 88176 states and 141408 transitions. [2024-11-11 22:59:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:39,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:39,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:39,444 INFO L225 Difference]: With dead ends: 88176 [2024-11-11 22:59:39,444 INFO L226 Difference]: Without dead ends: 63826 [2024-11-11 22:59:39,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:39,532 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 843 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:39,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1439 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:59:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63826 states. [2024-11-11 22:59:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63826 to 48494. [2024-11-11 22:59:43,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48494 states, 43602 states have (on average 1.522338424842897) internal successors, (66377), 43860 states have internal predecessors, (66377), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 22:59:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48494 states to 48494 states and 79378 transitions. [2024-11-11 22:59:43,538 INFO L78 Accepts]: Start accepts. Automaton has 48494 states and 79378 transitions. Word has length 102 [2024-11-11 22:59:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:43,538 INFO L471 AbstractCegarLoop]: Abstraction has 48494 states and 79378 transitions. [2024-11-11 22:59:43,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 48494 states and 79378 transitions. [2024-11-11 22:59:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 22:59:43,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:43,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:43,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:59:43,588 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:43,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:43,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1711563663, now seen corresponding path program 1 times [2024-11-11 22:59:43,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:43,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116231271] [2024-11-11 22:59:43,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:43,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:59:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:59:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:59:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:59:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:43,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:43,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116231271] [2024-11-11 22:59:43,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116231271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:43,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:43,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834247419] [2024-11-11 22:59:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:43,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:43,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:43,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:43,724 INFO L87 Difference]: Start difference. First operand 48494 states and 79378 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:53,477 INFO L93 Difference]: Finished difference Result 171184 states and 283384 transitions. [2024-11-11 22:59:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:53,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-11 22:59:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:54,443 INFO L225 Difference]: With dead ends: 171184 [2024-11-11 22:59:54,443 INFO L226 Difference]: Without dead ends: 122704 [2024-11-11 22:59:54,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:54,575 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 785 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:54,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1439 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:59:54,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122704 states.