./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.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 af1a65b4dba99a03062f9c0ef0e7df0ff9812521932f446bc475a13832d55c02 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 23:00:24,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 23:00:24,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 23:00:24,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 23:00:24,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 23:00:24,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 23:00:24,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 23:00:24,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 23:00:24,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 23:00:24,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 23:00:24,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 23:00:24,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 23:00:24,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 23:00:24,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 23:00:24,333 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 23:00:24,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 23:00:24,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 23:00:24,334 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 23:00:24,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 23:00:24,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 23:00:24,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 23:00:24,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 23:00:24,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 23:00:24,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 23:00:24,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 23:00:24,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 23:00:24,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 23:00:24,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 23:00:24,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 23:00:24,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 23:00:24,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 23:00:24,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 23:00:24,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:00:24,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 23:00:24,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 23:00:24,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 23:00:24,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 23:00:24,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 23:00:24,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 23:00:24,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 23:00:24,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 23:00:24,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 23:00:24,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af1a65b4dba99a03062f9c0ef0e7df0ff9812521932f446bc475a13832d55c02 [2024-11-11 23:00:24,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 23:00:24,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 23:00:24,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 23:00:24,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 23:00:24,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 23:00:24,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-11 23:00:25,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 23:00:25,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 23:00:25,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-11 23:00:26,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b341eb77e/a5f3d32abaea4d4f9a7bf1aa794a1bce/FLAGe43cc1be6 [2024-11-11 23:00:26,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b341eb77e/a5f3d32abaea4d4f9a7bf1aa794a1bce [2024-11-11 23:00:26,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 23:00:26,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 23:00:26,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 23:00:26,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 23:00:26,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 23:00:26,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf10048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26, skipping insertion in model container [2024-11-11 23:00:26,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 23:00:26,224 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.15.cil.c[911,924] [2024-11-11 23:00:26,289 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.15.cil.c[8416,8429] [2024-11-11 23:00:26,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:00:26,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 23:00:26,406 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.15.cil.c[911,924] [2024-11-11 23:00:26,421 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.15.cil.c[8416,8429] [2024-11-11 23:00:26,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:00:26,501 INFO L204 MainTranslator]: Completed translation [2024-11-11 23:00:26,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26 WrapperNode [2024-11-11 23:00:26,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 23:00:26,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 23:00:26,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 23:00:26,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 23:00:26,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,573 INFO L138 Inliner]: procedures = 81, calls = 101, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1170 [2024-11-11 23:00:26,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 23:00:26,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 23:00:26,574 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 23:00:26,574 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 23:00:26,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,613 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 23:00:26,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 23:00:26,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 23:00:26,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 23:00:26,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 23:00:26,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (1/1) ... [2024-11-11 23:00:26,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:00:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:00:26,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 23:00:26,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 23:00:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 23:00:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 23:00:26,735 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 23:00:26,735 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 23:00:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 23:00:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 23:00:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 23:00:26,736 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 23:00:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 23:00:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 23:00:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 23:00:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 23:00:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 23:00:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 23:00:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 23:00:26,737 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 23:00:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 23:00:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 23:00:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 23:00:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 23:00:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 23:00:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 23:00:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 23:00:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 23:00:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 23:00:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 23:00:26,739 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 23:00:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 23:00:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 23:00:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 23:00:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 23:00:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 23:00:26,740 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 23:00:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 23:00:26,874 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 23:00:26,876 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 23:00:27,621 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-11 23:00:27,622 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-11 23:00:27,810 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-11 23:00:27,810 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 23:00:27,833 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 23:00:27,837 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-11 23:00:27,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:00:27 BoogieIcfgContainer [2024-11-11 23:00:27,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 23:00:27,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 23:00:27,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 23:00:27,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 23:00:27,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:00:26" (1/3) ... [2024-11-11 23:00:27,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a4ac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:00:27, skipping insertion in model container [2024-11-11 23:00:27,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:00:26" (2/3) ... [2024-11-11 23:00:27,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a4ac1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:00:27, skipping insertion in model container [2024-11-11 23:00:27,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:00:27" (3/3) ... [2024-11-11 23:00:27,844 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.15.cil.c [2024-11-11 23:00:27,857 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 23:00:27,857 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 23:00:27,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 23:00:27,937 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;@68ebaccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 23:00:27,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 23:00:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 544 states, 481 states have (on average 1.6257796257796258) internal successors, (782), 489 states have internal predecessors, (782), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-11 23:00:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 23:00:27,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:27,958 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:27,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:27,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:27,964 INFO L85 PathProgramCache]: Analyzing trace with hash 340925370, now seen corresponding path program 1 times [2024-11-11 23:00:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:27,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823063549] [2024-11-11 23:00:27,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 23:00:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 23:00:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 23:00:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:28,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:28,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823063549] [2024-11-11 23:00:28,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823063549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:28,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:28,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 23:00:28,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603838094] [2024-11-11 23:00:28,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:28,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 23:00:28,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 23:00:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:28,531 INFO L87 Difference]: Start difference. First operand has 544 states, 481 states have (on average 1.6257796257796258) internal successors, (782), 489 states have internal predecessors, (782), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 23:00:29,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:29,736 INFO L93 Difference]: Finished difference Result 1209 states and 1929 transitions. [2024-11-11 23:00:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:29,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 23:00:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:29,749 INFO L225 Difference]: With dead ends: 1209 [2024-11-11 23:00:29,750 INFO L226 Difference]: Without dead ends: 684 [2024-11-11 23:00:29,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 23:00:29,759 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 1358 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:29,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2056 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 23:00:29,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-11 23:00:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 645. [2024-11-11 23:00:29,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 563 states have (on average 1.522202486678508) internal successors, (857), 570 states have internal predecessors, (857), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (59), 55 states have call predecessors, (59), 54 states have call successors, (59) [2024-11-11 23:00:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 974 transitions. [2024-11-11 23:00:29,857 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 974 transitions. Word has length 65 [2024-11-11 23:00:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:29,857 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 974 transitions. [2024-11-11 23:00:29,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 23:00:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 974 transitions. [2024-11-11 23:00:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 23:00:29,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:29,860 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:29,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 23:00:29,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:29,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2019814010, now seen corresponding path program 1 times [2024-11-11 23:00:29,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:29,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621917298] [2024-11-11 23:00:29,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 23:00:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 23:00:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 23:00:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:29,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:29,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621917298] [2024-11-11 23:00:29,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621917298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:29,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:29,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:29,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751995705] [2024-11-11 23:00:29,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:29,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:29,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:29,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:29,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:29,972 INFO L87 Difference]: Start difference. First operand 645 states and 974 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:30,977 INFO L93 Difference]: Finished difference Result 1113 states and 1626 transitions. [2024-11-11 23:00:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 23:00:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 23:00:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:30,982 INFO L225 Difference]: With dead ends: 1113 [2024-11-11 23:00:30,982 INFO L226 Difference]: Without dead ends: 904 [2024-11-11 23:00:30,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-11 23:00:30,984 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 2072 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:30,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 1782 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 23:00:30,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2024-11-11 23:00:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 830. [2024-11-11 23:00:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 712 states have (on average 1.4901685393258426) internal successors, (1061), 721 states have internal predecessors, (1061), 78 states have call successors, (78), 36 states have call predecessors, (78), 38 states have return successors, (82), 75 states have call predecessors, (82), 74 states have call successors, (82) [2024-11-11 23:00:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1221 transitions. [2024-11-11 23:00:31,023 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1221 transitions. Word has length 65 [2024-11-11 23:00:31,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:31,023 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1221 transitions. [2024-11-11 23:00:31,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1221 transitions. [2024-11-11 23:00:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 23:00:31,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:31,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:31,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 23:00:31,026 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:31,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1664245187, now seen corresponding path program 1 times [2024-11-11 23:00:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:31,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319239474] [2024-11-11 23:00:31,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 23:00:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 23:00:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:31,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:31,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319239474] [2024-11-11 23:00:31,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319239474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:31,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:31,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:31,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544758250] [2024-11-11 23:00:31,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:31,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:31,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:31,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:31,203 INFO L87 Difference]: Start difference. First operand 830 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 23:00:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:32,385 INFO L93 Difference]: Finished difference Result 1294 states and 1862 transitions. [2024-11-11 23:00:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 23:00:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-11 23:00:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:32,390 INFO L225 Difference]: With dead ends: 1294 [2024-11-11 23:00:32,390 INFO L226 Difference]: Without dead ends: 900 [2024-11-11 23:00:32,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 23:00:32,392 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 707 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:32,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 3289 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 23:00:32,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-11 23:00:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 840. [2024-11-11 23:00:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 720 states have (on average 1.4819444444444445) internal successors, (1067), 729 states have internal predecessors, (1067), 78 states have call successors, (78), 36 states have call predecessors, (78), 40 states have return successors, (84), 77 states have call predecessors, (84), 74 states have call successors, (84) [2024-11-11 23:00:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1229 transitions. [2024-11-11 23:00:32,430 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1229 transitions. Word has length 66 [2024-11-11 23:00:32,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:32,430 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1229 transitions. [2024-11-11 23:00:32,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 23:00:32,431 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1229 transitions. [2024-11-11 23:00:32,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 23:00:32,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:32,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:32,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 23:00:32,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:32,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:32,433 INFO L85 PathProgramCache]: Analyzing trace with hash 634885889, now seen corresponding path program 1 times [2024-11-11 23:00:32,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:32,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437792490] [2024-11-11 23:00:32,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:32,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 23:00:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 23:00:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:32,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:32,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437792490] [2024-11-11 23:00:32,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437792490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:32,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:32,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:32,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286187954] [2024-11-11 23:00:32,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:32,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:32,592 INFO L87 Difference]: Start difference. First operand 840 states and 1229 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:34,519 INFO L93 Difference]: Finished difference Result 2380 states and 3393 transitions. [2024-11-11 23:00:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 23:00:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-11 23:00:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:34,529 INFO L225 Difference]: With dead ends: 2380 [2024-11-11 23:00:34,530 INFO L226 Difference]: Without dead ends: 1118 [2024-11-11 23:00:34,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 23:00:34,533 INFO L435 NwaCegarLoop]: 622 mSDtfsCounter, 3123 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:34,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 2635 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 23:00:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-11 23:00:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 980. [2024-11-11 23:00:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 823 states have (on average 1.4495747266099634) internal successors, (1193), 834 states have internal predecessors, (1193), 98 states have call successors, (98), 50 states have call predecessors, (98), 57 states have return successors, (115), 98 states have call predecessors, (115), 94 states have call successors, (115) [2024-11-11 23:00:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1406 transitions. [2024-11-11 23:00:34,585 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1406 transitions. Word has length 66 [2024-11-11 23:00:34,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:34,586 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1406 transitions. [2024-11-11 23:00:34,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:34,586 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1406 transitions. [2024-11-11 23:00:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 23:00:34,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:34,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:34,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 23:00:34,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:34,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1242918057, now seen corresponding path program 1 times [2024-11-11 23:00:34,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:34,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999114019] [2024-11-11 23:00:34,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:34,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 23:00:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 23:00:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 23:00:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 23:00:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 23:00:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 23:00:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:34,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:34,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999114019] [2024-11-11 23:00:34,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999114019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:34,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:34,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 23:00:34,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372948742] [2024-11-11 23:00:34,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:34,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 23:00:34,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:34,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 23:00:34,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 23:00:34,715 INFO L87 Difference]: Start difference. First operand 980 states and 1406 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:35,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:35,728 INFO L93 Difference]: Finished difference Result 1899 states and 2660 transitions. [2024-11-11 23:00:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 23:00:35,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-11 23:00:35,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:35,732 INFO L225 Difference]: With dead ends: 1899 [2024-11-11 23:00:35,733 INFO L226 Difference]: Without dead ends: 422 [2024-11-11 23:00:35,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-11 23:00:35,736 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 2107 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:35,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 1987 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 23:00:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-11 23:00:35,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2024-11-11 23:00:35,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 386 states have (on average 1.5621761658031088) internal successors, (603), 388 states have internal predecessors, (603), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:35,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 659 transitions. [2024-11-11 23:00:35,748 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 659 transitions. Word has length 67 [2024-11-11 23:00:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:35,748 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 659 transitions. [2024-11-11 23:00:35,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 23:00:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 659 transitions. [2024-11-11 23:00:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:35,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:35,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:35,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 23:00:35,751 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:35,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash 640350824, now seen corresponding path program 1 times [2024-11-11 23:00:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485475348] [2024-11-11 23:00:35,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:35,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:35,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:35,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485475348] [2024-11-11 23:00:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485475348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:00:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620858051] [2024-11-11 23:00:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:35,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:00:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:00:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:00:35,994 INFO L87 Difference]: Start difference. First operand 422 states and 659 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:37,482 INFO L93 Difference]: Finished difference Result 985 states and 1563 transitions. [2024-11-11 23:00:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:00:37,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:37,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:37,486 INFO L225 Difference]: With dead ends: 985 [2024-11-11 23:00:37,486 INFO L226 Difference]: Without dead ends: 575 [2024-11-11 23:00:37,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:37,489 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1128 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:37,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 843 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 23:00:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-11 23:00:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 422. [2024-11-11 23:00:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 386 states have (on average 1.5595854922279793) internal successors, (602), 388 states have internal predecessors, (602), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:37,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 658 transitions. [2024-11-11 23:00:37,520 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 658 transitions. Word has length 190 [2024-11-11 23:00:37,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:37,521 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 658 transitions. [2024-11-11 23:00:37,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 658 transitions. [2024-11-11 23:00:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:37,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:37,525 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:37,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 23:00:37,526 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:37,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash -958798234, now seen corresponding path program 1 times [2024-11-11 23:00:37,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:37,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223141771] [2024-11-11 23:00:37,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:37,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:37,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223141771] [2024-11-11 23:00:37,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223141771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:37,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:37,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 23:00:37,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842562975] [2024-11-11 23:00:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:37,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 23:00:37,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:37,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 23:00:37,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 23:00:37,736 INFO L87 Difference]: Start difference. First operand 422 states and 658 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:39,058 INFO L93 Difference]: Finished difference Result 977 states and 1546 transitions. [2024-11-11 23:00:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 23:00:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:39,061 INFO L225 Difference]: With dead ends: 977 [2024-11-11 23:00:39,061 INFO L226 Difference]: Without dead ends: 575 [2024-11-11 23:00:39,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 23:00:39,062 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 1119 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:39,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 841 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 23:00:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-11 23:00:39,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 422. [2024-11-11 23:00:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 386 states have (on average 1.5569948186528497) internal successors, (601), 388 states have internal predecessors, (601), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-11 23:00:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 657 transitions. [2024-11-11 23:00:39,084 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 657 transitions. Word has length 190 [2024-11-11 23:00:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:39,085 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 657 transitions. [2024-11-11 23:00:39,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 657 transitions. [2024-11-11 23:00:39,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:39,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:39,086 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:39,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 23:00:39,086 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:39,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1048858524, now seen corresponding path program 1 times [2024-11-11 23:00:39,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:39,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575789838] [2024-11-11 23:00:39,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:39,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:39,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:39,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575789838] [2024-11-11 23:00:39,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575789838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:39,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:39,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 23:00:39,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770617453] [2024-11-11 23:00:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:39,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 23:00:39,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 23:00:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 23:00:39,312 INFO L87 Difference]: Start difference. First operand 422 states and 657 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:41,774 INFO L93 Difference]: Finished difference Result 1548 states and 2468 transitions. [2024-11-11 23:00:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 23:00:41,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:41,779 INFO L225 Difference]: With dead ends: 1548 [2024-11-11 23:00:41,779 INFO L226 Difference]: Without dead ends: 1148 [2024-11-11 23:00:41,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 23:00:41,783 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 1701 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:41,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 1440 Invalid, 2557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 23:00:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-11 23:00:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 841. [2024-11-11 23:00:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 776 states have (on average 1.5695876288659794) internal successors, (1218), 779 states have internal predecessors, (1218), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-11 23:00:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1321 transitions. [2024-11-11 23:00:41,821 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1321 transitions. Word has length 190 [2024-11-11 23:00:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:41,822 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1321 transitions. [2024-11-11 23:00:41,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1321 transitions. [2024-11-11 23:00:41,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:41,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:41,823 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:41,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 23:00:41,824 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:41,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:41,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1399082336, now seen corresponding path program 1 times [2024-11-11 23:00:41,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:41,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974061128] [2024-11-11 23:00:41,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:41,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:42,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:42,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:42,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:42,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:42,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974061128] [2024-11-11 23:00:42,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974061128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:42,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:42,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:42,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620719527] [2024-11-11 23:00:42,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:42,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:42,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:42,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:42,119 INFO L87 Difference]: Start difference. First operand 841 states and 1321 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:45,366 INFO L93 Difference]: Finished difference Result 2560 states and 4091 transitions. [2024-11-11 23:00:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:45,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:45,373 INFO L225 Difference]: With dead ends: 2560 [2024-11-11 23:00:45,373 INFO L226 Difference]: Without dead ends: 1741 [2024-11-11 23:00:45,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:45,376 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 1736 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3867 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:45,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 2803 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3867 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 23:00:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-11-11 23:00:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1231. [2024-11-11 23:00:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1137 states have (on average 1.5628847845206684) internal successors, (1777), 1141 states have internal predecessors, (1777), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-11 23:00:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1926 transitions. [2024-11-11 23:00:45,431 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1926 transitions. Word has length 190 [2024-11-11 23:00:45,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:45,432 INFO L471 AbstractCegarLoop]: Abstraction has 1231 states and 1926 transitions. [2024-11-11 23:00:45,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:45,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1926 transitions. [2024-11-11 23:00:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:45,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:45,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:45,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 23:00:45,434 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:45,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:45,434 INFO L85 PathProgramCache]: Analyzing trace with hash -524168094, now seen corresponding path program 1 times [2024-11-11 23:00:45,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:45,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380410048] [2024-11-11 23:00:45,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:45,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:45,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380410048] [2024-11-11 23:00:45,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380410048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:45,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:45,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:45,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785958377] [2024-11-11 23:00:45,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:45,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:45,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:45,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:45,706 INFO L87 Difference]: Start difference. First operand 1231 states and 1926 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:48,857 INFO L93 Difference]: Finished difference Result 4053 states and 6464 transitions. [2024-11-11 23:00:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:48,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:48,872 INFO L225 Difference]: With dead ends: 4053 [2024-11-11 23:00:48,872 INFO L226 Difference]: Without dead ends: 2844 [2024-11-11 23:00:48,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:48,876 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1734 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:48,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 2801 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 23:00:48,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-11-11 23:00:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2012. [2024-11-11 23:00:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1860 states have (on average 1.5569892473118279) internal successors, (2896), 1866 states have internal predecessors, (2896), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-11 23:00:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3141 transitions. [2024-11-11 23:00:49,012 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3141 transitions. Word has length 190 [2024-11-11 23:00:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:49,012 INFO L471 AbstractCegarLoop]: Abstraction has 2012 states and 3141 transitions. [2024-11-11 23:00:49,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3141 transitions. [2024-11-11 23:00:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:49,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:49,015 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:49,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 23:00:49,016 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:49,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2046190880, now seen corresponding path program 1 times [2024-11-11 23:00:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:49,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468680206] [2024-11-11 23:00:49,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:49,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:49,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:49,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468680206] [2024-11-11 23:00:49,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468680206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:49,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:49,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:49,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198126501] [2024-11-11 23:00:49,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:49,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:49,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:49,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:49,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:49,283 INFO L87 Difference]: Start difference. First operand 2012 states and 3141 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:52,673 INFO L93 Difference]: Finished difference Result 6926 states and 10999 transitions. [2024-11-11 23:00:52,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:52,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:52,695 INFO L225 Difference]: With dead ends: 6926 [2024-11-11 23:00:52,696 INFO L226 Difference]: Without dead ends: 4936 [2024-11-11 23:00:52,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:52,703 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1730 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:52,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 2801 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 23:00:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4936 states. [2024-11-11 23:00:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4936 to 3575. [2024-11-11 23:00:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3307 states have (on average 1.5524644693075296) internal successors, (5134), 3317 states have internal predecessors, (5134), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-11 23:00:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 5577 transitions. [2024-11-11 23:00:52,918 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 5577 transitions. Word has length 190 [2024-11-11 23:00:52,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:52,918 INFO L471 AbstractCegarLoop]: Abstraction has 3575 states and 5577 transitions. [2024-11-11 23:00:52,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 5577 transitions. [2024-11-11 23:00:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:52,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:52,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:52,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 23:00:52,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:52,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1750219614, now seen corresponding path program 1 times [2024-11-11 23:00:52,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:52,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222392475] [2024-11-11 23:00:52,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:52,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:53,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222392475] [2024-11-11 23:00:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222392475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:53,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953905680] [2024-11-11 23:00:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:53,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:53,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:53,178 INFO L87 Difference]: Start difference. First operand 3575 states and 5577 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:00:56,326 INFO L93 Difference]: Finished difference Result 12671 states and 20085 transitions. [2024-11-11 23:00:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:00:56,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:00:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:00:56,360 INFO L225 Difference]: With dead ends: 12671 [2024-11-11 23:00:56,360 INFO L226 Difference]: Without dead ends: 9118 [2024-11-11 23:00:56,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:00:56,371 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1860 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 23:00:56,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 1778 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 23:00:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9118 states. [2024-11-11 23:00:56,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9118 to 6706. [2024-11-11 23:00:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6706 states, 6206 states have (on average 1.5494682565259426) internal successors, (9616), 6224 states have internal predecessors, (9616), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-11 23:00:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6706 states to 6706 states and 10473 transitions. [2024-11-11 23:00:56,787 INFO L78 Accepts]: Start accepts. Automaton has 6706 states and 10473 transitions. Word has length 190 [2024-11-11 23:00:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:00:56,787 INFO L471 AbstractCegarLoop]: Abstraction has 6706 states and 10473 transitions. [2024-11-11 23:00:56,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:00:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6706 states and 10473 transitions. [2024-11-11 23:00:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:00:56,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:00:56,792 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:00:56,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 23:00:56,792 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:00:56,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:00:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1179947808, now seen corresponding path program 1 times [2024-11-11 23:00:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:00:56,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685873736] [2024-11-11 23:00:56,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:00:56,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:00:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:00:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:56,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:00:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:57,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:00:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:57,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:00:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:57,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:00:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:00:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:00:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:00:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685873736] [2024-11-11 23:00:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685873736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:00:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:00:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:00:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869897089] [2024-11-11 23:00:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:00:57,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:00:57,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:00:57,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:00:57,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:00:57,034 INFO L87 Difference]: Start difference. First operand 6706 states and 10473 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:00,846 INFO L93 Difference]: Finished difference Result 24145 states and 38287 transitions. [2024-11-11 23:01:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:00,894 INFO L225 Difference]: With dead ends: 24145 [2024-11-11 23:01:00,894 INFO L226 Difference]: Without dead ends: 17461 [2024-11-11 23:01:00,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:00,912 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1728 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3812 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:00,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 2801 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3812 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 23:01:00,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17461 states. [2024-11-11 23:01:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17461 to 12998. [2024-11-11 23:01:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12998 states, 12034 states have (on average 1.5482798736912082) internal successors, (18632), 12068 states have internal predecessors, (18632), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-11 23:01:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12998 states to 12998 states and 20371 transitions. [2024-11-11 23:01:01,631 INFO L78 Accepts]: Start accepts. Automaton has 12998 states and 20371 transitions. Word has length 190 [2024-11-11 23:01:01,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:01,631 INFO L471 AbstractCegarLoop]: Abstraction has 12998 states and 20371 transitions. [2024-11-11 23:01:01,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12998 states and 20371 transitions. [2024-11-11 23:01:01,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:01,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:01,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:01,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 23:01:01,640 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:01,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:01,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1965945698, now seen corresponding path program 1 times [2024-11-11 23:01:01,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:01,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313773746] [2024-11-11 23:01:01,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:01,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:01,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:01,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313773746] [2024-11-11 23:01:01,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313773746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:01,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:01,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:01,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514004876] [2024-11-11 23:01:01,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:01,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:01,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:01,862 INFO L87 Difference]: Start difference. First operand 12998 states and 20371 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:06,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:06,612 INFO L93 Difference]: Finished difference Result 47127 states and 74947 transitions. [2024-11-11 23:01:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:06,734 INFO L225 Difference]: With dead ends: 47127 [2024-11-11 23:01:06,734 INFO L226 Difference]: Without dead ends: 34151 [2024-11-11 23:01:06,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:06,775 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1727 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:06,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2801 Invalid, 3868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 23:01:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34151 states. [2024-11-11 23:01:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34151 to 25611. [2024-11-11 23:01:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25611 states, 23719 states have (on average 1.5475357308486868) internal successors, (36706), 23785 states have internal predecessors, (36706), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-11 23:01:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25611 states to 25611 states and 40371 transitions. [2024-11-11 23:01:08,553 INFO L78 Accepts]: Start accepts. Automaton has 25611 states and 40371 transitions. Word has length 190 [2024-11-11 23:01:08,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:08,554 INFO L471 AbstractCegarLoop]: Abstraction has 25611 states and 40371 transitions. [2024-11-11 23:01:08,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 25611 states and 40371 transitions. [2024-11-11 23:01:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:08,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:08,567 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:08,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 23:01:08,568 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:08,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1298563808, now seen corresponding path program 1 times [2024-11-11 23:01:08,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:08,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364572445] [2024-11-11 23:01:08,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:08,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:08,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364572445] [2024-11-11 23:01:08,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364572445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:08,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806562221] [2024-11-11 23:01:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:08,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:08,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:08,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:08,854 INFO L87 Difference]: Start difference. First operand 25611 states and 40371 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:15,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:15,265 INFO L93 Difference]: Finished difference Result 93090 states and 148865 transitions. [2024-11-11 23:01:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:15,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:15,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:15,545 INFO L225 Difference]: With dead ends: 93090 [2024-11-11 23:01:15,545 INFO L226 Difference]: Without dead ends: 67501 [2024-11-11 23:01:15,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:15,633 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1726 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3786 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:15,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2801 Invalid, 3855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3786 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 23:01:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67501 states. [2024-11-11 23:01:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67501 to 50900. [2024-11-11 23:01:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50900 states, 47152 states have (on average 1.5470817780794028) internal successors, (72948), 47282 states have internal predecessors, (72948), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 23:01:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50900 states to 50900 states and 80951 transitions. [2024-11-11 23:01:18,855 INFO L78 Accepts]: Start accepts. Automaton has 50900 states and 80951 transitions. Word has length 190 [2024-11-11 23:01:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:18,856 INFO L471 AbstractCegarLoop]: Abstraction has 50900 states and 80951 transitions. [2024-11-11 23:01:18,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 50900 states and 80951 transitions. [2024-11-11 23:01:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:18,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:18,876 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:18,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 23:01:18,877 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:18,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:18,877 INFO L85 PathProgramCache]: Analyzing trace with hash 801174622, now seen corresponding path program 1 times [2024-11-11 23:01:18,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:18,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650411541] [2024-11-11 23:01:18,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:18,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:19,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:19,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:19,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:19,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:19,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650411541] [2024-11-11 23:01:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650411541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:19,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:19,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:19,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954324208] [2024-11-11 23:01:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:19,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:19,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:19,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:19,126 INFO L87 Difference]: Start difference. First operand 50900 states and 80951 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:25,096 INFO L93 Difference]: Finished difference Result 119540 states and 193772 transitions. [2024-11-11 23:01:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 23:01:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:25,361 INFO L225 Difference]: With dead ends: 119540 [2024-11-11 23:01:25,361 INFO L226 Difference]: Without dead ends: 68662 [2024-11-11 23:01:25,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 23:01:25,484 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 1249 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:25,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1411 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 23:01:25,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68662 states. [2024-11-11 23:01:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68662 to 50900. [2024-11-11 23:01:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50900 states, 47152 states have (on average 1.5443459450288428) internal successors, (72819), 47282 states have internal predecessors, (72819), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-11 23:01:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50900 states to 50900 states and 80822 transitions. [2024-11-11 23:01:28,992 INFO L78 Accepts]: Start accepts. Automaton has 50900 states and 80822 transitions. Word has length 190 [2024-11-11 23:01:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:28,993 INFO L471 AbstractCegarLoop]: Abstraction has 50900 states and 80822 transitions. [2024-11-11 23:01:28,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 50900 states and 80822 transitions. [2024-11-11 23:01:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:29,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:29,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:29,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 23:01:29,019 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:29,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1146002784, now seen corresponding path program 1 times [2024-11-11 23:01:29,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202959175] [2024-11-11 23:01:29,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:29,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:29,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202959175] [2024-11-11 23:01:29,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202959175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:29,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:29,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:29,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019492017] [2024-11-11 23:01:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:29,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:29,322 INFO L87 Difference]: Start difference. First operand 50900 states and 80822 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 23:01:38,732 INFO L93 Difference]: Finished difference Result 184887 states and 297647 transitions. [2024-11-11 23:01:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 23:01:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2024-11-11 23:01:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 23:01:39,471 INFO L225 Difference]: With dead ends: 184887 [2024-11-11 23:01:39,471 INFO L226 Difference]: Without dead ends: 134009 [2024-11-11 23:01:39,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 23:01:39,595 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1718 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 3748 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 23:01:39,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 2801 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3748 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 23:01:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134009 states. [2024-11-11 23:01:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134009 to 101734. [2024-11-11 23:01:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101734 states, 94274 states have (on average 1.5433205337632858) internal successors, (145495), 94532 states have internal predecessors, (145495), 5661 states have call successors, (5661), 1543 states have call predecessors, (5661), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2024-11-11 23:01:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101734 states to 101734 states and 163632 transitions. [2024-11-11 23:01:46,408 INFO L78 Accepts]: Start accepts. Automaton has 101734 states and 163632 transitions. Word has length 190 [2024-11-11 23:01:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 23:01:46,409 INFO L471 AbstractCegarLoop]: Abstraction has 101734 states and 163632 transitions. [2024-11-11 23:01:46,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 23:01:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 101734 states and 163632 transitions. [2024-11-11 23:01:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-11 23:01:46,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:01:46,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:01:46,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 23:01:46,451 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:01:46,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:01:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2126957598, now seen corresponding path program 1 times [2024-11-11 23:01:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:01:46,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416600562] [2024-11-11 23:01:46,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:01:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:01:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 23:01:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 23:01:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 23:01:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 23:01:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 23:01:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:01:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:01:46,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:01:46,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416600562] [2024-11-11 23:01:46,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416600562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:01:46,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:01:46,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 23:01:46,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744369980] [2024-11-11 23:01:46,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:01:46,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 23:01:46,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:01:46,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 23:01:46,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 23:01:46,701 INFO L87 Difference]: Start difference. First operand 101734 states and 163632 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)