./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.03.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.03.cil-1.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 bad4bd14ff0d6303c86b61698001b4d4d1f47b3200dad5c7d05f11b8899f8627 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:07:24,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:07:24,835 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:07:24,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:07:24,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:07:24,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:07:24,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:07:24,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:07:24,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:07:24,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:07:24,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:07:24,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:07:24,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:07:24,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:07:24,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:07:24,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:07:24,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:07:24,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:07:24,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:07:24,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:07:24,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:07:24,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:07:24,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:07:24,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:07:24,868 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:07:24,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:07:24,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:07:24,869 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:07:24,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:07:24,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:07:24,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:07:24,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:07:24,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:07:24,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:07:24,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:07:24,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:07:24,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:07:24,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:07:24,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:07:24,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:07:24,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:07:24,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:07:24,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad4bd14ff0d6303c86b61698001b4d4d1f47b3200dad5c7d05f11b8899f8627 [2024-11-22 04:07:25,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:07:25,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:07:25,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:07:25,093 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:07:25,093 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:07:25,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.03.cil-1.c [2024-11-22 04:07:26,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:07:26,525 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:07:26,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.03.cil-1.c [2024-11-22 04:07:26,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3028b82/191b6a874d2a4ae1856e2417a8a517b7/FLAG4cc5f4839 [2024-11-22 04:07:26,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3028b82/191b6a874d2a4ae1856e2417a8a517b7 [2024-11-22 04:07:26,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:07:26,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:07:26,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:07:26,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:07:26,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:07:26,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:26,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2829470f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26, skipping insertion in model container [2024-11-22 04:07:26,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:26,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:07:26,744 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.03.cil-1.c[911,924] [2024-11-22 04:07:26,794 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.03.cil-1.c[8416,8429] [2024-11-22 04:07:26,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:07:26,851 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:07:26,861 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.03.cil-1.c[911,924] [2024-11-22 04:07:26,885 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.03.cil-1.c[8416,8429] [2024-11-22 04:07:26,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:07:26,947 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:07:26,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26 WrapperNode [2024-11-22 04:07:26,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:07:26,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:07:26,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:07:26,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:07:26,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:26,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:26,997 INFO L138 Inliner]: procedures = 61, calls = 71, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 572 [2024-11-22 04:07:26,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:07:26,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:07:26,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:07:26,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:07:27,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,026 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]. [2024-11-22 04:07:27,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:07:27,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:07:27,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:07:27,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:07:27,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (1/1) ... [2024-11-22 04:07:27,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:07:27,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:07:27,098 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) [2024-11-22 04:07:27,103 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 [2024-11-22 04:07:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:07:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:07:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:07:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:07:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:07:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:07:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:07:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:07:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:07:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:07:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:07:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:07:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:07:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:07:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:07:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:07:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:07:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:07:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:07:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:07:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:07:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:07:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:07:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:07:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:07:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:07:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:07:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-22 04:07:27,156 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-22 04:07:27,268 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:07:27,271 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:07:27,733 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-22 04:07:27,734 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; [2024-11-22 04:07:27,818 INFO L? ?]: Removed 80 outVars from TransFormulas that were not future-live. [2024-11-22 04:07:27,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:07:27,839 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:07:27,839 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-22 04:07:27,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:07:27 BoogieIcfgContainer [2024-11-22 04:07:27,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:07:27,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:07:27,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:07:27,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:07:27,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:07:26" (1/3) ... [2024-11-22 04:07:27,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f9da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:07:27, skipping insertion in model container [2024-11-22 04:07:27,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:26" (2/3) ... [2024-11-22 04:07:27,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f9da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:07:27, skipping insertion in model container [2024-11-22 04:07:27,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:07:27" (3/3) ... [2024-11-22 04:07:27,846 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.03.cil-1.c [2024-11-22 04:07:27,859 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:07:27,859 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:07:27,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:07:27,921 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;@4a50946b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:07:27,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:07:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 233 states have (on average 1.5708154506437768) internal successors, (366), 241 states have internal predecessors, (366), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-22 04:07:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:27,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:27,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:27,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:27,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:27,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1547030886, now seen corresponding path program 1 times [2024-11-22 04:07:27,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:27,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842155254] [2024-11-22 04:07:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:28,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:28,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842155254] [2024-11-22 04:07:28,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842155254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:28,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:28,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859282849] [2024-11-22 04:07:28,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:28,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:28,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:28,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:28,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:28,422 INFO L87 Difference]: Start difference. First operand has 286 states, 233 states have (on average 1.5708154506437768) internal successors, (366), 241 states have internal predecessors, (366), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:29,027 INFO L93 Difference]: Finished difference Result 671 states and 1029 transitions. [2024-11-22 04:07:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:29,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 [2024-11-22 04:07:29,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:29,042 INFO L225 Difference]: With dead ends: 671 [2024-11-22 04:07:29,043 INFO L226 Difference]: Without dead ends: 394 [2024-11-22 04:07:29,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:29,052 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 341 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:29,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 941 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:07:29,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-22 04:07:29,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 387. [2024-11-22 04:07:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 315 states have (on average 1.4634920634920634) internal successors, (461), 322 states have internal predecessors, (461), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-22 04:07:29,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 558 transitions. [2024-11-22 04:07:29,123 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 558 transitions. Word has length 65 [2024-11-22 04:07:29,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:29,124 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 558 transitions. [2024-11-22 04:07:29,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 558 transitions. [2024-11-22 04:07:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:29,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:29,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:29,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:07:29,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1069047770, now seen corresponding path program 1 times [2024-11-22 04:07:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463629217] [2024-11-22 04:07:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:29,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:29,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:29,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463629217] [2024-11-22 04:07:29,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463629217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:29,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:29,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:29,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785807720] [2024-11-22 04:07:29,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:29,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:29,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:29,301 INFO L87 Difference]: Start difference. First operand 387 states and 558 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:29,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:29,903 INFO L93 Difference]: Finished difference Result 754 states and 1073 transitions. [2024-11-22 04:07:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:29,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 [2024-11-22 04:07:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:29,913 INFO L225 Difference]: With dead ends: 754 [2024-11-22 04:07:29,913 INFO L226 Difference]: Without dead ends: 545 [2024-11-22 04:07:29,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:29,915 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 569 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:29,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1224 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:07:29,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-22 04:07:29,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 499. [2024-11-22 04:07:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 405 states have (on average 1.4493827160493826) internal successors, (587), 414 states have internal predecessors, (587), 61 states have call successors, (61), 29 states have call predecessors, (61), 31 states have return successors, (70), 59 states have call predecessors, (70), 57 states have call successors, (70) [2024-11-22 04:07:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 718 transitions. [2024-11-22 04:07:29,964 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 718 transitions. Word has length 65 [2024-11-22 04:07:29,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:29,965 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 718 transitions. [2024-11-22 04:07:29,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 718 transitions. [2024-11-22 04:07:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:29,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:29,969 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:29,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:07:29,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:29,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1197333416, now seen corresponding path program 1 times [2024-11-22 04:07:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:29,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137818316] [2024-11-22 04:07:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:30,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:30,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137818316] [2024-11-22 04:07:30,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137818316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:30,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:30,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:30,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696528921] [2024-11-22 04:07:30,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:30,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:30,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:30,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:30,070 INFO L87 Difference]: Start difference. First operand 499 states and 718 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:30,238 INFO L93 Difference]: Finished difference Result 1405 states and 2000 transitions. [2024-11-22 04:07:30,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:30,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 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 [2024-11-22 04:07:30,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:30,246 INFO L225 Difference]: With dead ends: 1405 [2024-11-22 04:07:30,246 INFO L226 Difference]: Without dead ends: 1090 [2024-11-22 04:07:30,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:30,250 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 497 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:30,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 971 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-22 04:07:30,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1067. [2024-11-22 04:07:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 863 states have (on average 1.4055619930475087) internal successors, (1213), 880 states have internal predecessors, (1213), 121 states have call successors, (121), 71 states have call predecessors, (121), 81 states have return successors, (155), 119 states have call predecessors, (155), 117 states have call successors, (155) [2024-11-22 04:07:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1489 transitions. [2024-11-22 04:07:30,311 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1489 transitions. Word has length 65 [2024-11-22 04:07:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:30,312 INFO L471 AbstractCegarLoop]: Abstraction has 1067 states and 1489 transitions. [2024-11-22 04:07:30,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1489 transitions. [2024-11-22 04:07:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:07:30,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:30,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:30,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:07:30,314 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:30,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:30,315 INFO L85 PathProgramCache]: Analyzing trace with hash -434334283, now seen corresponding path program 1 times [2024-11-22 04:07:30,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:30,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293255652] [2024-11-22 04:07:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:30,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293255652] [2024-11-22 04:07:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293255652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:30,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:30,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:30,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764445545] [2024-11-22 04:07:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:30,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:30,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:30,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:30,390 INFO L87 Difference]: Start difference. First operand 1067 states and 1489 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:07:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:30,449 INFO L93 Difference]: Finished difference Result 1970 states and 2753 transitions. [2024-11-22 04:07:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:30,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 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 [2024-11-22 04:07:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:30,477 INFO L225 Difference]: With dead ends: 1970 [2024-11-22 04:07:30,477 INFO L226 Difference]: Without dead ends: 1087 [2024-11-22 04:07:30,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:30,479 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 0 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:30,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1979 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-22 04:07:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-11-22 04:07:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 879 states have (on average 1.3924914675767919) internal successors, (1224), 896 states have internal predecessors, (1224), 121 states have call successors, (121), 71 states have call predecessors, (121), 85 states have return successors, (162), 123 states have call predecessors, (162), 117 states have call successors, (162) [2024-11-22 04:07:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1507 transitions. [2024-11-22 04:07:30,534 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1507 transitions. Word has length 66 [2024-11-22 04:07:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:30,535 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1507 transitions. [2024-11-22 04:07:30,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:07:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1507 transitions. [2024-11-22 04:07:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:07:30,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:30,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:30,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:07:30,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:30,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1463693581, now seen corresponding path program 1 times [2024-11-22 04:07:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:30,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539809166] [2024-11-22 04:07:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:30,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:30,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539809166] [2024-11-22 04:07:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539809166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554710078] [2024-11-22 04:07:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:30,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:30,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:30,611 INFO L87 Difference]: Start difference. First operand 1087 states and 1507 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:31,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:31,152 INFO L93 Difference]: Finished difference Result 3648 states and 5043 transitions. [2024-11-22 04:07:31,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:07:31,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 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 [2024-11-22 04:07:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:31,160 INFO L225 Difference]: With dead ends: 3648 [2024-11-22 04:07:31,160 INFO L226 Difference]: Without dead ends: 1383 [2024-11-22 04:07:31,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:31,165 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 1286 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:31,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1958 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-11-22 04:07:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1003. [2024-11-22 04:07:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 795 states have (on average 1.359748427672956) internal successors, (1081), 812 states have internal predecessors, (1081), 121 states have call successors, (121), 71 states have call predecessors, (121), 85 states have return successors, (150), 123 states have call predecessors, (150), 117 states have call successors, (150) [2024-11-22 04:07:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1352 transitions. [2024-11-22 04:07:31,232 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1352 transitions. Word has length 66 [2024-11-22 04:07:31,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:31,237 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1352 transitions. [2024-11-22 04:07:31,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1352 transitions. [2024-11-22 04:07:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:07:31,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:31,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:31,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:07:31,238 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:31,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:31,239 INFO L85 PathProgramCache]: Analyzing trace with hash 827821915, now seen corresponding path program 1 times [2024-11-22 04:07:31,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:31,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209926004] [2024-11-22 04:07:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:31,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209926004] [2024-11-22 04:07:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209926004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:31,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:31,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:07:31,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900089762] [2024-11-22 04:07:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:31,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:07:31,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:31,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:07:31,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:07:31,334 INFO L87 Difference]: Start difference. First operand 1003 states and 1352 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:31,901 INFO L93 Difference]: Finished difference Result 2110 states and 2826 transitions. [2024-11-22 04:07:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:07:31,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-22 04:07:31,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:31,903 INFO L225 Difference]: With dead ends: 2110 [2024-11-22 04:07:31,904 INFO L226 Difference]: Without dead ends: 164 [2024-11-22 04:07:31,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:07:31,911 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 707 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:31,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1080 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-22 04:07:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-22 04:07:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.5) internal successors, (207), 140 states have internal predecessors, (207), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 04:07:31,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2024-11-22 04:07:31,920 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 67 [2024-11-22 04:07:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:31,920 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2024-11-22 04:07:31,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:07:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2024-11-22 04:07:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:31,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:31,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:31,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:07:31,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:31,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:31,922 INFO L85 PathProgramCache]: Analyzing trace with hash 55024972, now seen corresponding path program 1 times [2024-11-22 04:07:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:31,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905108502] [2024-11-22 04:07:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:31,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:31,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905108502] [2024-11-22 04:07:31,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905108502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:31,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:31,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209116790] [2024-11-22 04:07:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:31,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:31,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:31,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:31,969 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:31,979 INFO L93 Difference]: Finished difference Result 319 states and 473 transitions. [2024-11-22 04:07:31,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:07:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:31,981 INFO L225 Difference]: With dead ends: 319 [2024-11-22 04:07:31,981 INFO L226 Difference]: Without dead ends: 164 [2024-11-22 04:07:31,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:31,982 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 234 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:31,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 242 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:31,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-22 04:07:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-11-22 04:07:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 140 states have internal predecessors, (206), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 04:07:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 242 transitions. [2024-11-22 04:07:31,991 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 242 transitions. Word has length 80 [2024-11-22 04:07:31,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:31,991 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 242 transitions. [2024-11-22 04:07:31,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:31,991 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 242 transitions. [2024-11-22 04:07:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:31,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:31,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:31,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:07:31,993 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:31,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1853432818, now seen corresponding path program 1 times [2024-11-22 04:07:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:31,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70407912] [2024-11-22 04:07:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70407912] [2024-11-22 04:07:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70407912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:32,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:32,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:32,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882121201] [2024-11-22 04:07:32,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:32,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:32,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:32,054 INFO L87 Difference]: Start difference. First operand 164 states and 242 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:32,273 INFO L93 Difference]: Finished difference Result 480 states and 718 transitions. [2024-11-22 04:07:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:32,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:32,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:32,278 INFO L225 Difference]: With dead ends: 480 [2024-11-22 04:07:32,278 INFO L226 Difference]: Without dead ends: 328 [2024-11-22 04:07:32,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:32,279 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 404 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:32,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 654 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:07:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-22 04:07:32,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 315. [2024-11-22 04:07:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 270 states have (on average 1.5074074074074073) internal successors, (407), 273 states have internal predecessors, (407), 31 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-22 04:07:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 468 transitions. [2024-11-22 04:07:32,295 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 468 transitions. Word has length 80 [2024-11-22 04:07:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:32,295 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 468 transitions. [2024-11-22 04:07:32,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 468 transitions. [2024-11-22 04:07:32,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:32,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:32,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:32,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:07:32,297 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:32,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:32,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1200093962, now seen corresponding path program 1 times [2024-11-22 04:07:32,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:32,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098298170] [2024-11-22 04:07:32,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:32,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098298170] [2024-11-22 04:07:32,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098298170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:32,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:32,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:32,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724668559] [2024-11-22 04:07:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:32,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:32,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:32,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:32,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:32,396 INFO L87 Difference]: Start difference. First operand 315 states and 468 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:32,713 INFO L93 Difference]: Finished difference Result 805 states and 1207 transitions. [2024-11-22 04:07:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:32,716 INFO L225 Difference]: With dead ends: 805 [2024-11-22 04:07:32,717 INFO L226 Difference]: Without dead ends: 502 [2024-11-22 04:07:32,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:32,719 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 395 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:32,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1234 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-22 04:07:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 457. [2024-11-22 04:07:32,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 393 states have (on average 1.5012722646310432) internal successors, (590), 397 states have internal predecessors, (590), 43 states have call successors, (43), 19 states have call predecessors, (43), 20 states have return successors, (45), 42 states have call predecessors, (45), 41 states have call successors, (45) [2024-11-22 04:07:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 678 transitions. [2024-11-22 04:07:32,736 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 678 transitions. Word has length 80 [2024-11-22 04:07:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:32,736 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 678 transitions. [2024-11-22 04:07:32,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 678 transitions. [2024-11-22 04:07:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:32,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:32,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:32,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:07:32,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:32,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:32,738 INFO L85 PathProgramCache]: Analyzing trace with hash -486085876, now seen corresponding path program 1 times [2024-11-22 04:07:32,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:32,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324154150] [2024-11-22 04:07:32,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:32,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:32,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324154150] [2024-11-22 04:07:32,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324154150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:32,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:32,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:32,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079246801] [2024-11-22 04:07:32,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:32,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:32,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:32,814 INFO L87 Difference]: Start difference. First operand 457 states and 678 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:33,168 INFO L93 Difference]: Finished difference Result 1247 states and 1868 transitions. [2024-11-22 04:07:33,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:33,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:33,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:33,173 INFO L225 Difference]: With dead ends: 1247 [2024-11-22 04:07:33,173 INFO L226 Difference]: Without dead ends: 802 [2024-11-22 04:07:33,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:33,175 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 390 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:33,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1218 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-22 04:07:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 754. [2024-11-22 04:07:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 650 states have (on average 1.5) internal successors, (975), 658 states have internal predecessors, (975), 67 states have call successors, (67), 31 states have call predecessors, (67), 36 states have return successors, (81), 68 states have call predecessors, (81), 65 states have call successors, (81) [2024-11-22 04:07:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1123 transitions. [2024-11-22 04:07:33,215 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1123 transitions. Word has length 80 [2024-11-22 04:07:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:33,215 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1123 transitions. [2024-11-22 04:07:33,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1123 transitions. [2024-11-22 04:07:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:33,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:33,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:33,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:07:33,217 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:33,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:33,218 INFO L85 PathProgramCache]: Analyzing trace with hash -540478774, now seen corresponding path program 1 times [2024-11-22 04:07:33,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:33,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613888366] [2024-11-22 04:07:33,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:33,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:33,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:33,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613888366] [2024-11-22 04:07:33,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613888366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:33,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:33,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:33,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728313645] [2024-11-22 04:07:33,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:33,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:33,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:33,311 INFO L87 Difference]: Start difference. First operand 754 states and 1123 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:33,494 INFO L93 Difference]: Finished difference Result 1562 states and 2356 transitions. [2024-11-22 04:07:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:33,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:33,500 INFO L225 Difference]: With dead ends: 1562 [2024-11-22 04:07:33,500 INFO L226 Difference]: Without dead ends: 820 [2024-11-22 04:07:33,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:33,503 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 297 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:33,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 453 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:33,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-22 04:07:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 754. [2024-11-22 04:07:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 650 states have (on average 1.4923076923076923) internal successors, (970), 658 states have internal predecessors, (970), 67 states have call successors, (67), 31 states have call predecessors, (67), 36 states have return successors, (81), 68 states have call predecessors, (81), 65 states have call successors, (81) [2024-11-22 04:07:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1118 transitions. [2024-11-22 04:07:33,546 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1118 transitions. Word has length 80 [2024-11-22 04:07:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:33,548 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1118 transitions. [2024-11-22 04:07:33,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1118 transitions. [2024-11-22 04:07:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:33,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:33,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:33,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:07:33,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:33,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash -957875380, now seen corresponding path program 1 times [2024-11-22 04:07:33,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:33,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935364768] [2024-11-22 04:07:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:33,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:33,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:33,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935364768] [2024-11-22 04:07:33,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935364768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:33,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:33,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900343390] [2024-11-22 04:07:33,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:33,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:33,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:33,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:33,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:33,657 INFO L87 Difference]: Start difference. First operand 754 states and 1118 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:34,132 INFO L93 Difference]: Finished difference Result 2266 states and 3393 transitions. [2024-11-22 04:07:34,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:34,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:34,142 INFO L225 Difference]: With dead ends: 2266 [2024-11-22 04:07:34,142 INFO L226 Difference]: Without dead ends: 1524 [2024-11-22 04:07:34,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:34,146 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 410 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:34,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1174 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2024-11-22 04:07:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1360. [2024-11-22 04:07:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1174 states have (on average 1.495741056218058) internal successors, (1756), 1196 states have internal predecessors, (1756), 111 states have call successors, (111), 55 states have call predecessors, (111), 74 states have return successors, (173), 116 states have call predecessors, (173), 109 states have call successors, (173) [2024-11-22 04:07:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2040 transitions. [2024-11-22 04:07:34,215 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2040 transitions. Word has length 80 [2024-11-22 04:07:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:34,215 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2040 transitions. [2024-11-22 04:07:34,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:34,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2040 transitions. [2024-11-22 04:07:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:34,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:34,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:34,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:07:34,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:34,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash -278603126, now seen corresponding path program 1 times [2024-11-22 04:07:34,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:34,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089882646] [2024-11-22 04:07:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:34,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:34,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089882646] [2024-11-22 04:07:34,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089882646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:34,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:34,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:34,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682593167] [2024-11-22 04:07:34,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:34,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:34,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:34,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:34,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:34,284 INFO L87 Difference]: Start difference. First operand 1360 states and 2040 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:34,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:34,475 INFO L93 Difference]: Finished difference Result 2824 states and 4292 transitions. [2024-11-22 04:07:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:34,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:34,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:34,483 INFO L225 Difference]: With dead ends: 2824 [2024-11-22 04:07:34,483 INFO L226 Difference]: Without dead ends: 1476 [2024-11-22 04:07:34,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:34,487 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 296 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:34,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 423 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:34,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-22 04:07:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1360. [2024-11-22 04:07:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1174 states have (on average 1.4880749574105623) internal successors, (1747), 1196 states have internal predecessors, (1747), 111 states have call successors, (111), 55 states have call predecessors, (111), 74 states have return successors, (173), 116 states have call predecessors, (173), 109 states have call successors, (173) [2024-11-22 04:07:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2031 transitions. [2024-11-22 04:07:34,565 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2031 transitions. Word has length 80 [2024-11-22 04:07:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:34,565 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2031 transitions. [2024-11-22 04:07:34,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:34,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2031 transitions. [2024-11-22 04:07:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:34,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:34,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:34,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:07:34,567 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:34,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1682971532, now seen corresponding path program 1 times [2024-11-22 04:07:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:34,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159759899] [2024-11-22 04:07:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:34,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:34,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:34,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159759899] [2024-11-22 04:07:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159759899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:34,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:34,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093659860] [2024-11-22 04:07:34,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:34,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:34,675 INFO L87 Difference]: Start difference. First operand 1360 states and 2031 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:35,140 INFO L93 Difference]: Finished difference Result 4016 states and 6070 transitions. [2024-11-22 04:07:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 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 80 [2024-11-22 04:07:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:35,157 INFO L225 Difference]: With dead ends: 4016 [2024-11-22 04:07:35,157 INFO L226 Difference]: Without dead ends: 2668 [2024-11-22 04:07:35,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:35,161 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 375 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:35,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1129 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:35,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-22 04:07:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2569. [2024-11-22 04:07:35,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2205 states have (on average 1.4798185941043085) internal successors, (3263), 2273 states have internal predecessors, (3263), 195 states have call successors, (195), 103 states have call predecessors, (195), 168 states have return successors, (449), 208 states have call predecessors, (449), 193 states have call successors, (449) [2024-11-22 04:07:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3907 transitions. [2024-11-22 04:07:35,309 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3907 transitions. Word has length 80 [2024-11-22 04:07:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:35,309 INFO L471 AbstractCegarLoop]: Abstraction has 2569 states and 3907 transitions. [2024-11-22 04:07:35,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3907 transitions. [2024-11-22 04:07:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:35,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:35,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:35,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:07:35,313 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:35,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2051295986, now seen corresponding path program 1 times [2024-11-22 04:07:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:35,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662940829] [2024-11-22 04:07:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:35,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662940829] [2024-11-22 04:07:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662940829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:35,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:35,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:35,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049983973] [2024-11-22 04:07:35,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:35,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:35,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:35,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:35,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:35,392 INFO L87 Difference]: Start difference. First operand 2569 states and 3907 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:35,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:35,533 INFO L93 Difference]: Finished difference Result 5176 states and 7951 transitions. [2024-11-22 04:07:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:35,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:35,545 INFO L225 Difference]: With dead ends: 5176 [2024-11-22 04:07:35,546 INFO L226 Difference]: Without dead ends: 2620 [2024-11-22 04:07:35,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:35,554 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:35,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 942 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2024-11-22 04:07:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 2620. [2024-11-22 04:07:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2256 states have (on average 1.4689716312056738) internal successors, (3314), 2324 states have internal predecessors, (3314), 195 states have call successors, (195), 103 states have call predecessors, (195), 168 states have return successors, (449), 208 states have call predecessors, (449), 193 states have call successors, (449) [2024-11-22 04:07:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3958 transitions. [2024-11-22 04:07:35,706 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3958 transitions. Word has length 80 [2024-11-22 04:07:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:35,707 INFO L471 AbstractCegarLoop]: Abstraction has 2620 states and 3958 transitions. [2024-11-22 04:07:35,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3958 transitions. [2024-11-22 04:07:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:35,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:35,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:35,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:07:35,709 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:35,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:35,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1762591052, now seen corresponding path program 1 times [2024-11-22 04:07:35,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:35,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667488999] [2024-11-22 04:07:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:35,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:35,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:35,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667488999] [2024-11-22 04:07:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667488999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:35,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:35,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:35,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619409938] [2024-11-22 04:07:35,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:35,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:35,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:35,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:35,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:35,741 INFO L87 Difference]: Start difference. First operand 2620 states and 3958 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:36,037 INFO L93 Difference]: Finished difference Result 7748 states and 11771 transitions. [2024-11-22 04:07:36,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:36,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:36,063 INFO L225 Difference]: With dead ends: 7748 [2024-11-22 04:07:36,063 INFO L226 Difference]: Without dead ends: 5141 [2024-11-22 04:07:36,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:36,071 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 417 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:36,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 815 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2024-11-22 04:07:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5103. [2024-11-22 04:07:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 4399 states have (on average 1.4648783814503297) internal successors, (6444), 4533 states have internal predecessors, (6444), 367 states have call successors, (367), 205 states have call predecessors, (367), 336 states have return successors, (862), 380 states have call predecessors, (862), 365 states have call successors, (862) [2024-11-22 04:07:36,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 7673 transitions. [2024-11-22 04:07:36,423 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 7673 transitions. Word has length 80 [2024-11-22 04:07:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:36,425 INFO L471 AbstractCegarLoop]: Abstraction has 5103 states and 7673 transitions. [2024-11-22 04:07:36,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 7673 transitions. [2024-11-22 04:07:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:36,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:36,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:36,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:07:36,428 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:36,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1099541525, now seen corresponding path program 1 times [2024-11-22 04:07:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:36,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41083188] [2024-11-22 04:07:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:36,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:36,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41083188] [2024-11-22 04:07:36,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41083188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:36,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:36,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:36,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348798263] [2024-11-22 04:07:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:36,497 INFO L87 Difference]: Start difference. First operand 5103 states and 7673 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:36,787 INFO L93 Difference]: Finished difference Result 10244 states and 15553 transitions. [2024-11-22 04:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:36,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:36,815 INFO L225 Difference]: With dead ends: 10244 [2024-11-22 04:07:36,816 INFO L226 Difference]: Without dead ends: 5154 [2024-11-22 04:07:36,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:36,832 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:36,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 942 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5154 states. [2024-11-22 04:07:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154. [2024-11-22 04:07:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 4450 states have (on average 1.4557303370786516) internal successors, (6478), 4584 states have internal predecessors, (6478), 367 states have call successors, (367), 205 states have call predecessors, (367), 336 states have return successors, (862), 380 states have call predecessors, (862), 365 states have call successors, (862) [2024-11-22 04:07:37,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7707 transitions. [2024-11-22 04:07:37,159 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7707 transitions. Word has length 80 [2024-11-22 04:07:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:37,160 INFO L471 AbstractCegarLoop]: Abstraction has 5154 states and 7707 transitions. [2024-11-22 04:07:37,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7707 transitions. [2024-11-22 04:07:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:37,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:37,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:37,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:07:37,163 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:37,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1146037929, now seen corresponding path program 1 times [2024-11-22 04:07:37,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:37,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571045391] [2024-11-22 04:07:37,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:37,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:37,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:37,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571045391] [2024-11-22 04:07:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571045391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:37,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:37,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135455669] [2024-11-22 04:07:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:37,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:37,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:37,214 INFO L87 Difference]: Start difference. First operand 5154 states and 7707 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:37,438 INFO L93 Difference]: Finished difference Result 10397 states and 15689 transitions. [2024-11-22 04:07:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:37,465 INFO L225 Difference]: With dead ends: 10397 [2024-11-22 04:07:37,465 INFO L226 Difference]: Without dead ends: 5256 [2024-11-22 04:07:37,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:37,479 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:37,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 942 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2024-11-22 04:07:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 5256. [2024-11-22 04:07:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 4552 states have (on average 1.445518453427065) internal successors, (6580), 4686 states have internal predecessors, (6580), 367 states have call successors, (367), 205 states have call predecessors, (367), 336 states have return successors, (862), 380 states have call predecessors, (862), 365 states have call successors, (862) [2024-11-22 04:07:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 7809 transitions. [2024-11-22 04:07:37,869 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 7809 transitions. Word has length 80 [2024-11-22 04:07:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:37,870 INFO L471 AbstractCegarLoop]: Abstraction has 5256 states and 7809 transitions. [2024-11-22 04:07:37,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 7809 transitions. [2024-11-22 04:07:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:37,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:37,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:37,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:07:37,874 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:37,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:37,874 INFO L85 PathProgramCache]: Analyzing trace with hash 116678631, now seen corresponding path program 1 times [2024-11-22 04:07:37,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:37,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612629422] [2024-11-22 04:07:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:37,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:37,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612629422] [2024-11-22 04:07:37,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612629422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:37,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:37,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:37,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516209250] [2024-11-22 04:07:37,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:37,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:37,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:37,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:37,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:37,922 INFO L87 Difference]: Start difference. First operand 5256 states and 7809 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:38,655 INFO L93 Difference]: Finished difference Result 15619 states and 23338 transitions. [2024-11-22 04:07:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:38,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:38,693 INFO L225 Difference]: With dead ends: 15619 [2024-11-22 04:07:38,694 INFO L226 Difference]: Without dead ends: 10376 [2024-11-22 04:07:38,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:38,707 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 429 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:38,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 815 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10376 states. [2024-11-22 04:07:39,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10376 to 10304. [2024-11-22 04:07:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10304 states, 8921 states have (on average 1.43907633673355) internal successors, (12838), 9187 states have internal predecessors, (12838), 710 states have call successors, (710), 409 states have call predecessors, (710), 672 states have return successors, (1687), 723 states have call predecessors, (1687), 708 states have call successors, (1687) [2024-11-22 04:07:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10304 states to 10304 states and 15235 transitions. [2024-11-22 04:07:39,259 INFO L78 Accepts]: Start accepts. Automaton has 10304 states and 15235 transitions. Word has length 80 [2024-11-22 04:07:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:39,259 INFO L471 AbstractCegarLoop]: Abstraction has 10304 states and 15235 transitions. [2024-11-22 04:07:39,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10304 states and 15235 transitions. [2024-11-22 04:07:39,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:39,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:39,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:39,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:07:39,262 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:39,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1648137978, now seen corresponding path program 1 times [2024-11-22 04:07:39,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:39,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286746313] [2024-11-22 04:07:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:39,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:39,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:39,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286746313] [2024-11-22 04:07:39,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286746313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:39,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:39,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:39,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891761025] [2024-11-22 04:07:39,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:39,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:39,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:39,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:39,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:39,301 INFO L87 Difference]: Start difference. First operand 10304 states and 15235 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:39,747 INFO L93 Difference]: Finished difference Result 20697 states and 30884 transitions. [2024-11-22 04:07:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 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 80 [2024-11-22 04:07:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:39,783 INFO L225 Difference]: With dead ends: 20697 [2024-11-22 04:07:39,783 INFO L226 Difference]: Without dead ends: 10406 [2024-11-22 04:07:39,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:39,805 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:39,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 942 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2024-11-22 04:07:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 10406. [2024-11-22 04:07:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10406 states, 9023 states have (on average 1.4303446747201596) internal successors, (12906), 9289 states have internal predecessors, (12906), 710 states have call successors, (710), 409 states have call predecessors, (710), 672 states have return successors, (1687), 723 states have call predecessors, (1687), 708 states have call successors, (1687) [2024-11-22 04:07:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10406 states to 10406 states and 15303 transitions. [2024-11-22 04:07:40,549 INFO L78 Accepts]: Start accepts. Automaton has 10406 states and 15303 transitions. Word has length 80 [2024-11-22 04:07:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:40,550 INFO L471 AbstractCegarLoop]: Abstraction has 10406 states and 15303 transitions. [2024-11-22 04:07:40,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 10406 states and 15303 transitions. [2024-11-22 04:07:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:40,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:40,553 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:40,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:07:40,553 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:40,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:40,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1373378364, now seen corresponding path program 1 times [2024-11-22 04:07:40,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:40,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434560307] [2024-11-22 04:07:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:40,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:40,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:40,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:40,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434560307] [2024-11-22 04:07:40,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434560307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:40,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:40,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:40,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561645297] [2024-11-22 04:07:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:40,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:40,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:40,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:40,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:40,653 INFO L87 Difference]: Start difference. First operand 10406 states and 15303 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:41,400 INFO L93 Difference]: Finished difference Result 11982 states and 17589 transitions. [2024-11-22 04:07:41,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:41,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:41,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:41,424 INFO L225 Difference]: With dead ends: 11982 [2024-11-22 04:07:41,424 INFO L226 Difference]: Without dead ends: 6174 [2024-11-22 04:07:41,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:41,438 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 382 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:41,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 826 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6174 states. [2024-11-22 04:07:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6174 to 5806. [2024-11-22 04:07:41,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5059 states have (on average 1.4069974303221982) internal successors, (7118), 5141 states have internal predecessors, (7118), 426 states have call successors, (426), 241 states have call predecessors, (426), 320 states have return successors, (659), 431 states have call predecessors, (659), 424 states have call successors, (659) [2024-11-22 04:07:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 8203 transitions. [2024-11-22 04:07:41,888 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 8203 transitions. Word has length 80 [2024-11-22 04:07:41,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:41,888 INFO L471 AbstractCegarLoop]: Abstraction has 5806 states and 8203 transitions. [2024-11-22 04:07:41,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 8203 transitions. [2024-11-22 04:07:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:41,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:41,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:41,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:07:41,891 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:41,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash 549849670, now seen corresponding path program 1 times [2024-11-22 04:07:41,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:41,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598777397] [2024-11-22 04:07:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:41,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:41,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:41,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598777397] [2024-11-22 04:07:41,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598777397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:41,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:41,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:41,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494355683] [2024-11-22 04:07:41,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:41,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:41,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:41,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:41,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:41,969 INFO L87 Difference]: Start difference. First operand 5806 states and 8203 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:42,382 INFO L93 Difference]: Finished difference Result 7166 states and 10169 transitions. [2024-11-22 04:07:42,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:42,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:42,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:42,399 INFO L225 Difference]: With dead ends: 7166 [2024-11-22 04:07:42,399 INFO L226 Difference]: Without dead ends: 3578 [2024-11-22 04:07:42,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:42,408 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 374 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:42,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 818 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:07:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2024-11-22 04:07:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3426. [2024-11-22 04:07:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 2995 states have (on average 1.3989983305509182) internal successors, (4190), 3021 states have internal predecessors, (4190), 262 states have call successors, (262), 145 states have call predecessors, (262), 168 states have return successors, (315), 263 states have call predecessors, (315), 260 states have call successors, (315) [2024-11-22 04:07:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4767 transitions. [2024-11-22 04:07:42,569 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4767 transitions. Word has length 80 [2024-11-22 04:07:42,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:42,570 INFO L471 AbstractCegarLoop]: Abstraction has 3426 states and 4767 transitions. [2024-11-22 04:07:42,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4767 transitions. [2024-11-22 04:07:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:42,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:42,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:42,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:07:42,572 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:42,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash 611889284, now seen corresponding path program 1 times [2024-11-22 04:07:42,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:42,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458905473] [2024-11-22 04:07:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:42,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:42,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458905473] [2024-11-22 04:07:42,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458905473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:42,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:42,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:42,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171063641] [2024-11-22 04:07:42,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:42,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:42,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:42,646 INFO L87 Difference]: Start difference. First operand 3426 states and 4767 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:42,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:42,915 INFO L93 Difference]: Finished difference Result 6838 states and 9590 transitions. [2024-11-22 04:07:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:42,931 INFO L225 Difference]: With dead ends: 6838 [2024-11-22 04:07:42,931 INFO L226 Difference]: Without dead ends: 3426 [2024-11-22 04:07:42,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:42,938 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 284 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:42,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 420 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2024-11-22 04:07:43,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3426. [2024-11-22 04:07:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 2995 states have (on average 1.3869782971619367) internal successors, (4154), 3021 states have internal predecessors, (4154), 262 states have call successors, (262), 145 states have call predecessors, (262), 168 states have return successors, (315), 263 states have call predecessors, (315), 260 states have call successors, (315) [2024-11-22 04:07:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4731 transitions. [2024-11-22 04:07:43,118 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4731 transitions. Word has length 80 [2024-11-22 04:07:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:43,118 INFO L471 AbstractCegarLoop]: Abstraction has 3426 states and 4731 transitions. [2024-11-22 04:07:43,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4731 transitions. [2024-11-22 04:07:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:43,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:43,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:43,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:07:43,120 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:43,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash 752437894, now seen corresponding path program 1 times [2024-11-22 04:07:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264160945] [2024-11-22 04:07:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:43,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:43,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264160945] [2024-11-22 04:07:43,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264160945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:43,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:43,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:43,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145692968] [2024-11-22 04:07:43,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:43,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:43,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:43,194 INFO L87 Difference]: Start difference. First operand 3426 states and 4731 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:43,678 INFO L93 Difference]: Finished difference Result 5636 states and 7786 transitions. [2024-11-22 04:07:43,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:43,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:43,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:43,689 INFO L225 Difference]: With dead ends: 5636 [2024-11-22 04:07:43,690 INFO L226 Difference]: Without dead ends: 3296 [2024-11-22 04:07:43,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:43,692 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 391 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:43,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 789 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2024-11-22 04:07:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2856. [2024-11-22 04:07:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2503 states have (on average 1.3847383140231722) internal successors, (3466), 2515 states have internal predecessors, (3466), 222 states have call successors, (222), 121 states have call predecessors, (222), 130 states have return successors, (237), 221 states have call predecessors, (237), 220 states have call successors, (237) [2024-11-22 04:07:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3925 transitions. [2024-11-22 04:07:43,828 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3925 transitions. Word has length 80 [2024-11-22 04:07:43,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:43,829 INFO L471 AbstractCegarLoop]: Abstraction has 2856 states and 3925 transitions. [2024-11-22 04:07:43,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3925 transitions. [2024-11-22 04:07:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:43,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:43,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:43,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:07:43,831 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:43,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash 618424388, now seen corresponding path program 1 times [2024-11-22 04:07:43,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:43,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360109686] [2024-11-22 04:07:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:43,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360109686] [2024-11-22 04:07:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360109686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079545946] [2024-11-22 04:07:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:43,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:43,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:43,899 INFO L87 Difference]: Start difference. First operand 2856 states and 3925 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:44,269 INFO L93 Difference]: Finished difference Result 7025 states and 9714 transitions. [2024-11-22 04:07:44,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:07:44,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:44,284 INFO L225 Difference]: With dead ends: 7025 [2024-11-22 04:07:44,285 INFO L226 Difference]: Without dead ends: 4182 [2024-11-22 04:07:44,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:07:44,291 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 334 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:44,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 465 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:07:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2024-11-22 04:07:44,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 3944. [2024-11-22 04:07:44,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3459 states have (on average 1.3489447817288234) internal successors, (4666), 3501 states have internal predecessors, (4666), 274 states have call successors, (274), 171 states have call predecessors, (274), 210 states have return successors, (406), 273 states have call predecessors, (406), 272 states have call successors, (406) [2024-11-22 04:07:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5346 transitions. [2024-11-22 04:07:44,494 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5346 transitions. Word has length 80 [2024-11-22 04:07:44,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:44,494 INFO L471 AbstractCegarLoop]: Abstraction has 3944 states and 5346 transitions. [2024-11-22 04:07:44,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5346 transitions. [2024-11-22 04:07:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:44,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:44,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:44,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:07:44,496 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:44,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:44,497 INFO L85 PathProgramCache]: Analyzing trace with hash 837279106, now seen corresponding path program 1 times [2024-11-22 04:07:44,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654696418] [2024-11-22 04:07:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:44,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654696418] [2024-11-22 04:07:44,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654696418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:44,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:44,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:44,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675576613] [2024-11-22 04:07:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:44,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:44,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:44,597 INFO L87 Difference]: Start difference. First operand 3944 states and 5346 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:45,114 INFO L93 Difference]: Finished difference Result 6963 states and 9434 transitions. [2024-11-22 04:07:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:45,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-11-22 04:07:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:45,130 INFO L225 Difference]: With dead ends: 6963 [2024-11-22 04:07:45,130 INFO L226 Difference]: Without dead ends: 4150 [2024-11-22 04:07:45,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:45,136 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 347 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:45,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 762 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2024-11-22 04:07:45,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 3920. [2024-11-22 04:07:45,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3447 states have (on average 1.3466782709602554) internal successors, (4642), 3477 states have internal predecessors, (4642), 274 states have call successors, (274), 171 states have call predecessors, (274), 198 states have return successors, (367), 272 states have call predecessors, (367), 272 states have call successors, (367) [2024-11-22 04:07:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5283 transitions. [2024-11-22 04:07:45,348 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5283 transitions. Word has length 80 [2024-11-22 04:07:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:45,349 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5283 transitions. [2024-11-22 04:07:45,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:45,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5283 transitions. [2024-11-22 04:07:45,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 04:07:45,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:45,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:45,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 04:07:45,350 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:45,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:45,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1259980932, now seen corresponding path program 1 times [2024-11-22 04:07:45,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:45,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97725004] [2024-11-22 04:07:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:45,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:45,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97725004] [2024-11-22 04:07:45,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97725004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:45,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:45,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:45,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322223246] [2024-11-22 04:07:45,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:45,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:45,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:45,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:45,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:45,375 INFO L87 Difference]: Start difference. First operand 3920 states and 5283 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:07:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:45,704 INFO L93 Difference]: Finished difference Result 11406 states and 15424 transitions. [2024-11-22 04:07:45,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:07:45,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-22 04:07:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:45,737 INFO L225 Difference]: With dead ends: 11406 [2024-11-22 04:07:45,737 INFO L226 Difference]: Without dead ends: 7500 [2024-11-22 04:07:45,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:45,749 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 191 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:45,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 444 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2024-11-22 04:07:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7480. [2024-11-22 04:07:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7480 states, 6543 states have (on average 1.3220235366040043) internal successors, (8650), 6621 states have internal predecessors, (8650), 540 states have call successors, (540), 341 states have call predecessors, (540), 396 states have return successors, (725), 518 states have call predecessors, (725), 538 states have call successors, (725) [2024-11-22 04:07:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7480 states to 7480 states and 9915 transitions. [2024-11-22 04:07:46,264 INFO L78 Accepts]: Start accepts. Automaton has 7480 states and 9915 transitions. Word has length 80 [2024-11-22 04:07:46,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:46,265 INFO L471 AbstractCegarLoop]: Abstraction has 7480 states and 9915 transitions. [2024-11-22 04:07:46,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:07:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 7480 states and 9915 transitions. [2024-11-22 04:07:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 04:07:46,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:46,269 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:46,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 04:07:46,269 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:46,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:46,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1483251247, now seen corresponding path program 1 times [2024-11-22 04:07:46,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:46,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849877932] [2024-11-22 04:07:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:46,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:07:46,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:46,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849877932] [2024-11-22 04:07:46,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849877932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:46,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:46,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935265572] [2024-11-22 04:07:46,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:46,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:46,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:46,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:46,360 INFO L87 Difference]: Start difference. First operand 7480 states and 9915 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:47,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:47,719 INFO L93 Difference]: Finished difference Result 22912 states and 30500 transitions. [2024-11-22 04:07:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:47,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 130 [2024-11-22 04:07:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:47,772 INFO L225 Difference]: With dead ends: 22912 [2024-11-22 04:07:47,773 INFO L226 Difference]: Without dead ends: 15448 [2024-11-22 04:07:47,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:47,797 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 310 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:47,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 646 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:07:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2024-11-22 04:07:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 15344. [2024-11-22 04:07:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15344 states, 13474 states have (on average 1.3060709514620752) internal successors, (17598), 13669 states have internal predecessors, (17598), 1037 states have call successors, (1037), 661 states have call predecessors, (1037), 832 states have return successors, (1675), 1015 states have call predecessors, (1675), 1035 states have call successors, (1675) [2024-11-22 04:07:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15344 states to 15344 states and 20310 transitions. [2024-11-22 04:07:48,964 INFO L78 Accepts]: Start accepts. Automaton has 15344 states and 20310 transitions. Word has length 130 [2024-11-22 04:07:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:48,965 INFO L471 AbstractCegarLoop]: Abstraction has 15344 states and 20310 transitions. [2024-11-22 04:07:48,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 15344 states and 20310 transitions. [2024-11-22 04:07:48,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 04:07:48,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:48,971 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:48,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 04:07:48,971 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:48,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:48,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1971298353, now seen corresponding path program 1 times [2024-11-22 04:07:48,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:48,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219497154] [2024-11-22 04:07:48,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:48,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 04:07:48,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:48,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219497154] [2024-11-22 04:07:48,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219497154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:48,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:48,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453372021] [2024-11-22 04:07:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:48,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:48,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:48,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:48,998 INFO L87 Difference]: Start difference. First operand 15344 states and 20310 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:49,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:49,594 INFO L93 Difference]: Finished difference Result 27184 states and 35953 transitions. [2024-11-22 04:07:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:07:49,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 130 [2024-11-22 04:07:49,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:49,645 INFO L225 Difference]: With dead ends: 27184 [2024-11-22 04:07:49,645 INFO L226 Difference]: Without dead ends: 11856 [2024-11-22 04:07:49,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:49,674 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 229 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:49,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 236 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:07:49,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2024-11-22 04:07:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 11856. [2024-11-22 04:07:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11856 states, 10425 states have (on average 1.3040767386091128) internal successors, (13595), 10581 states have internal predecessors, (13595), 786 states have call successors, (786), 501 states have call predecessors, (786), 644 states have return successors, (1289), 774 states have call predecessors, (1289), 784 states have call successors, (1289) [2024-11-22 04:07:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11856 states to 11856 states and 15670 transitions. [2024-11-22 04:07:50,299 INFO L78 Accepts]: Start accepts. Automaton has 11856 states and 15670 transitions. Word has length 130 [2024-11-22 04:07:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:50,300 INFO L471 AbstractCegarLoop]: Abstraction has 11856 states and 15670 transitions. [2024-11-22 04:07:50,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:07:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 11856 states and 15670 transitions. [2024-11-22 04:07:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 04:07:50,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:50,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:50,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 04:07:50,305 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:50,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -724571478, now seen corresponding path program 1 times [2024-11-22 04:07:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:50,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811033666] [2024-11-22 04:07:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:50,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:07:50,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:50,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811033666] [2024-11-22 04:07:50,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811033666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:50,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:50,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:50,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768726278] [2024-11-22 04:07:50,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:50,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:50,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:50,389 INFO L87 Difference]: Start difference. First operand 11856 states and 15670 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:51,708 INFO L93 Difference]: Finished difference Result 35902 states and 47370 transitions. [2024-11-22 04:07:51,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:51,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 132 [2024-11-22 04:07:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:51,780 INFO L225 Difference]: With dead ends: 35902 [2024-11-22 04:07:51,780 INFO L226 Difference]: Without dead ends: 24062 [2024-11-22 04:07:51,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:51,805 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 300 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:51,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 516 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24062 states. [2024-11-22 04:07:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24062 to 24058. [2024-11-22 04:07:53,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24058 states, 21147 states have (on average 1.2932803707381662) internal successors, (27349), 21537 states have internal predecessors, (27349), 1522 states have call successors, (1522), 1001 states have call predecessors, (1522), 1388 states have return successors, (2713), 1520 states have call predecessors, (2713), 1520 states have call successors, (2713) [2024-11-22 04:07:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24058 states to 24058 states and 31584 transitions. [2024-11-22 04:07:53,192 INFO L78 Accepts]: Start accepts. Automaton has 24058 states and 31584 transitions. Word has length 132 [2024-11-22 04:07:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:53,192 INFO L471 AbstractCegarLoop]: Abstraction has 24058 states and 31584 transitions. [2024-11-22 04:07:53,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:53,192 INFO L276 IsEmpty]: Start isEmpty. Operand 24058 states and 31584 transitions. [2024-11-22 04:07:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 04:07:53,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:53,198 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:53,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 04:07:53,198 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:53,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1679294895, now seen corresponding path program 1 times [2024-11-22 04:07:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:53,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950097392] [2024-11-22 04:07:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:53,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:07:53,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:53,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950097392] [2024-11-22 04:07:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950097392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:53,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:53,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544221221] [2024-11-22 04:07:53,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:53,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:53,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:53,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:53,280 INFO L87 Difference]: Start difference. First operand 24058 states and 31584 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:56,190 INFO L93 Difference]: Finished difference Result 72268 states and 95120 transitions. [2024-11-22 04:07:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:56,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 134 [2024-11-22 04:07:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:56,344 INFO L225 Difference]: With dead ends: 72268 [2024-11-22 04:07:56,344 INFO L226 Difference]: Without dead ends: 48226 [2024-11-22 04:07:56,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:56,402 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 287 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:56,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 570 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:07:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48226 states. [2024-11-22 04:07:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48226 to 48078. [2024-11-22 04:07:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48078 states, 41936 states have (on average 1.286674933231591) internal successors, (53958), 42955 states have internal predecessors, (53958), 2993 states have call successors, (2993), 2001 states have call predecessors, (2993), 3148 states have return successors, (6265), 3123 states have call predecessors, (6265), 2991 states have call successors, (6265) [2024-11-22 04:07:59,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48078 states to 48078 states and 63216 transitions. [2024-11-22 04:07:59,478 INFO L78 Accepts]: Start accepts. Automaton has 48078 states and 63216 transitions. Word has length 134 [2024-11-22 04:07:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:59,478 INFO L471 AbstractCegarLoop]: Abstraction has 48078 states and 63216 transitions. [2024-11-22 04:07:59,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:07:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 48078 states and 63216 transitions. [2024-11-22 04:07:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 04:07:59,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:59,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:59,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 04:07:59,488 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:59,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:59,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1753838799, now seen corresponding path program 1 times [2024-11-22 04:07:59,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:59,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973797674] [2024-11-22 04:07:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:59,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 04:07:59,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:59,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973797674] [2024-11-22 04:07:59,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973797674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:59,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:59,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168053956] [2024-11-22 04:07:59,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:59,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:59,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:59,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:59,521 INFO L87 Difference]: Start difference. First operand 48078 states and 63216 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:08:02,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:08:02,596 INFO L93 Difference]: Finished difference Result 87144 states and 114689 transitions. [2024-11-22 04:08:02,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:08:02,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 134 [2024-11-22 04:08:02,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:08:02,728 INFO L225 Difference]: With dead ends: 87144 [2024-11-22 04:08:02,728 INFO L226 Difference]: Without dead ends: 39082 [2024-11-22 04:08:02,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:08:02,792 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 226 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:08:02,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:08:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39082 states. [2024-11-22 04:08:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39082 to 39082. [2024-11-22 04:08:05,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39082 states, 34095 states have (on average 1.288634697169673) internal successors, (43936), 34953 states have internal predecessors, (43936), 2398 states have call successors, (2398), 1601 states have call predecessors, (2398), 2588 states have return successors, (5165), 2528 states have call predecessors, (5165), 2396 states have call successors, (5165) [2024-11-22 04:08:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39082 states to 39082 states and 51499 transitions. [2024-11-22 04:08:05,656 INFO L78 Accepts]: Start accepts. Automaton has 39082 states and 51499 transitions. Word has length 134 [2024-11-22 04:08:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:08:05,657 INFO L471 AbstractCegarLoop]: Abstraction has 39082 states and 51499 transitions. [2024-11-22 04:08:05,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:08:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand 39082 states and 51499 transitions. [2024-11-22 04:08:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 04:08:05,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:08:05,665 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:08:05,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 04:08:05,666 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:08:05,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:08:05,666 INFO L85 PathProgramCache]: Analyzing trace with hash -759522070, now seen corresponding path program 1 times [2024-11-22 04:08:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:08:05,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453881775] [2024-11-22 04:08:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:08:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:08:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:08:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 04:08:05,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:08:05,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453881775] [2024-11-22 04:08:05,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453881775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:08:05,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:08:05,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:08:05,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442600616] [2024-11-22 04:08:05,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:08:05,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:08:05,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:08:05,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:08:05,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:08:05,737 INFO L87 Difference]: Start difference. First operand 39082 states and 51499 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:08:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:08:11,332 INFO L93 Difference]: Finished difference Result 115803 states and 154590 transitions. [2024-11-22 04:08:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 04:08:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 136 [2024-11-22 04:08:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:08:11,592 INFO L225 Difference]: With dead ends: 115803 [2024-11-22 04:08:11,592 INFO L226 Difference]: Without dead ends: 62629 [2024-11-22 04:08:11,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-22 04:08:11,695 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 1559 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:08:11,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 1294 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:08:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62629 states.