./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:20:50,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:20:50,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:20:50,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:20:50,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:20:50,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:20:50,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:20:50,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:20:50,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:20:50,966 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:20:50,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:20:50,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:20:50,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:20:50,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:20:50,968 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:20:50,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:20:50,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:20:50,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:20:50,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:20:50,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:20:50,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:20:50,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:20:50,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:20:50,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:20:50,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:20:50,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:20:50,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:20:50,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:20:50,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:20:50,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:20:50,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:20:50,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:20:50,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:20:50,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:20:50,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:20:50,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:20:50,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:20:50,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:20:50,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:20:50,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:20:50,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:20:50,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:20:50,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c [2024-11-18 16:20:51,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:20:51,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:20:51,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:20:51,285 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:20:51,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:20:51,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-18 16:20:52,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:20:52,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:20:52,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-18 16:20:53,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4791d4bf6/cf85c6a57dd14f8d839a89f78c65ff63/FLAG790872148 [2024-11-18 16:20:53,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4791d4bf6/cf85c6a57dd14f8d839a89f78c65ff63 [2024-11-18 16:20:53,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:20:53,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:20:53,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:20:53,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:20:53,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:20:53,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ccb244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53, skipping insertion in model container [2024-11-18 16:20:53,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:20:53,297 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.04.cil-1.c[911,924] [2024-11-18 16:20:53,385 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.04.cil-1.c[8416,8429] [2024-11-18 16:20:53,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:20:53,457 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:20:53,469 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.04.cil-1.c[911,924] [2024-11-18 16:20:53,500 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.04.cil-1.c[8416,8429] [2024-11-18 16:20:53,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:20:53,586 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:20:53,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53 WrapperNode [2024-11-18 16:20:53,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:20:53,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:20:53,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:20:53,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:20:53,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,693 INFO L138 Inliner]: procedures = 63, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 626 [2024-11-18 16:20:53,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:20:53,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:20:53,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:20:53,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:20:53,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,735 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]. [2024-11-18 16:20:53,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:20:53,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:20:53,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:20:53,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:20:53,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (1/1) ... [2024-11-18 16:20:53,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:20:53,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:20:53,822 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) [2024-11-18 16:20:53,829 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 [2024-11-18 16:20:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:20:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 16:20:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 16:20:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-18 16:20:53,885 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-18 16:20:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-18 16:20:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-18 16:20:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-18 16:20:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-18 16:20:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-18 16:20:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-18 16:20:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-18 16:20:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-18 16:20:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-18 16:20:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-18 16:20:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-18 16:20:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-18 16:20:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-18 16:20:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-18 16:20:53,888 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-18 16:20:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-18 16:20:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-18 16:20:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-18 16:20:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:20:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-18 16:20:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-18 16:20:53,889 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-18 16:20:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-18 16:20:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:20:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:20:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-18 16:20:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-18 16:20:54,024 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:20:54,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:20:54,668 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-18 16:20:54,668 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; [2024-11-18 16:20:54,774 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-18 16:20:54,775 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:20:54,805 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:20:54,806 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-18 16:20:54,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:54 BoogieIcfgContainer [2024-11-18 16:20:54,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:20:54,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:20:54,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:20:54,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:20:54,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:20:53" (1/3) ... [2024-11-18 16:20:54,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c60e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:54, skipping insertion in model container [2024-11-18 16:20:54,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:53" (2/3) ... [2024-11-18 16:20:54,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c60e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:54, skipping insertion in model container [2024-11-18 16:20:54,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:54" (3/3) ... [2024-11-18 16:20:54,835 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-18 16:20:54,866 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:20:54,866 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:20:54,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:20:54,955 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;@3c4fc71c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:20:54,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:20:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-18 16:20:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:20:54,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:54,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:54,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:54,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:54,983 INFO L85 PathProgramCache]: Analyzing trace with hash 857460646, now seen corresponding path program 1 times [2024-11-18 16:20:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:54,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731613441] [2024-11-18 16:20:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:54,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:55,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:55,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:55,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731613441] [2024-11-18 16:20:55,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731613441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:55,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:20:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514317040] [2024-11-18 16:20:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:55,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:20:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:55,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:20:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:55,668 INFO L87 Difference]: Start difference. First operand has 304 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:56,748 INFO L93 Difference]: Finished difference Result 750 states and 1150 transitions. [2024-11-18 16:20:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:20:56,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-18 16:20:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:56,769 INFO L225 Difference]: With dead ends: 750 [2024-11-18 16:20:56,769 INFO L226 Difference]: Without dead ends: 456 [2024-11-18 16:20:56,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:20:56,780 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 641 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:56,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1322 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 16:20:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-18 16:20:56,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 410. [2024-11-18 16:20:56,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 338 states have (on average 1.4733727810650887) internal successors, (498), 345 states have internal predecessors, (498), 47 states have call successors, (47), 21 states have call predecessors, (47), 23 states have return successors, (56), 46 states have call predecessors, (56), 45 states have call successors, (56) [2024-11-18 16:20:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 601 transitions. [2024-11-18 16:20:56,877 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 601 transitions. Word has length 65 [2024-11-18 16:20:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:56,879 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 601 transitions. [2024-11-18 16:20:56,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 601 transitions. [2024-11-18 16:20:56,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:20:56,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:56,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:56,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:20:56,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:56,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1171125464, now seen corresponding path program 1 times [2024-11-18 16:20:56,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:56,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306971192] [2024-11-18 16:20:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:56,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:57,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:57,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306971192] [2024-11-18 16:20:57,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306971192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:57,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:57,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:20:57,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161344766] [2024-11-18 16:20:57,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:57,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:20:57,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:20:57,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:20:57,015 INFO L87 Difference]: Start difference. First operand 410 states and 601 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:57,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:57,246 INFO L93 Difference]: Finished difference Result 1023 states and 1478 transitions. [2024-11-18 16:20:57,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:20:57,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-18 16:20:57,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:57,253 INFO L225 Difference]: With dead ends: 1023 [2024-11-18 16:20:57,253 INFO L226 Difference]: Without dead ends: 810 [2024-11-18 16:20:57,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:20:57,257 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 526 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:57,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1032 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:20:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-18 16:20:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 792. [2024-11-18 16:20:57,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.4334365325077398) internal successors, (926), 659 states have internal predecessors, (926), 87 states have call successors, (87), 49 states have call predecessors, (87), 57 states have return successors, (114), 86 states have call predecessors, (114), 85 states have call successors, (114) [2024-11-18 16:20:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1127 transitions. [2024-11-18 16:20:57,346 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1127 transitions. Word has length 65 [2024-11-18 16:20:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:57,347 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1127 transitions. [2024-11-18 16:20:57,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1127 transitions. [2024-11-18 16:20:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:20:57,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:57,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:57,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:20:57,358 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:57,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:57,358 INFO L85 PathProgramCache]: Analyzing trace with hash -572935609, now seen corresponding path program 1 times [2024-11-18 16:20:57,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:57,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094338659] [2024-11-18 16:20:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:57,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094338659] [2024-11-18 16:20:57,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094338659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:57,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:57,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:20:57,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870919078] [2024-11-18 16:20:57,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:57,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:20:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:57,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:20:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:57,469 INFO L87 Difference]: Start difference. First operand 792 states and 1127 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:20:57,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:57,551 INFO L93 Difference]: Finished difference Result 1407 states and 1998 transitions. [2024-11-18 16:20:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:20:57,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-18 16:20:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:57,561 INFO L225 Difference]: With dead ends: 1407 [2024-11-18 16:20:57,562 INFO L226 Difference]: Without dead ends: 812 [2024-11-18 16:20:57,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:57,567 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 0 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:57,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2129 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:20:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-11-18 16:20:57,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2024-11-18 16:20:57,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 662 states have (on average 1.4199395770392749) internal successors, (940), 675 states have internal predecessors, (940), 87 states have call successors, (87), 49 states have call predecessors, (87), 61 states have return successors, (120), 90 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-18 16:20:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1147 transitions. [2024-11-18 16:20:57,633 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1147 transitions. Word has length 66 [2024-11-18 16:20:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:57,634 INFO L471 AbstractCegarLoop]: Abstraction has 812 states and 1147 transitions. [2024-11-18 16:20:57,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:20:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1147 transitions. [2024-11-18 16:20:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:20:57,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:57,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:57,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:20:57,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:57,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1602294907, now seen corresponding path program 1 times [2024-11-18 16:20:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175297044] [2024-11-18 16:20:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:57,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:57,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175297044] [2024-11-18 16:20:57,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175297044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:57,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:57,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:20:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330527322] [2024-11-18 16:20:57,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:57,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:20:57,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:57,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:20:57,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:57,752 INFO L87 Difference]: Start difference. First operand 812 states and 1147 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:58,426 INFO L93 Difference]: Finished difference Result 2553 states and 3581 transitions. [2024-11-18 16:20:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:20:58,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-18 16:20:58,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:58,435 INFO L225 Difference]: With dead ends: 2553 [2024-11-18 16:20:58,436 INFO L226 Difference]: Without dead ends: 1015 [2024-11-18 16:20:58,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:20:58,445 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 1352 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:58,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 2034 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:20:58,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-18 16:20:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 758. [2024-11-18 16:20:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 608 states have (on average 1.393092105263158) internal successors, (847), 621 states have internal predecessors, (847), 87 states have call successors, (87), 49 states have call predecessors, (87), 61 states have return successors, (112), 90 states have call predecessors, (112), 85 states have call successors, (112) [2024-11-18 16:20:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1046 transitions. [2024-11-18 16:20:58,519 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1046 transitions. Word has length 66 [2024-11-18 16:20:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:58,519 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1046 transitions. [2024-11-18 16:20:58,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1046 transitions. [2024-11-18 16:20:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:20:58,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:58,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:58,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:20:58,521 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:58,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:58,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1653003208, now seen corresponding path program 1 times [2024-11-18 16:20:58,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:58,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041300108] [2024-11-18 16:20:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:58,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041300108] [2024-11-18 16:20:58,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041300108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:58,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:58,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:20:58,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768826485] [2024-11-18 16:20:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:20:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:20:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:20:58,653 INFO L87 Difference]: Start difference. First operand 758 states and 1046 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:59,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:59,423 INFO L93 Difference]: Finished difference Result 1622 states and 2230 transitions. [2024-11-18 16:20:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:20:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-18 16:20:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:59,427 INFO L225 Difference]: With dead ends: 1622 [2024-11-18 16:20:59,427 INFO L226 Difference]: Without dead ends: 183 [2024-11-18 16:20:59,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:20:59,436 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 852 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:59,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1041 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:20:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-18 16:20:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-18 16:20:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 158 states have (on average 1.5) internal successors, (237), 159 states have internal predecessors, (237), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-18 16:20:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 273 transitions. [2024-11-18 16:20:59,448 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 273 transitions. Word has length 67 [2024-11-18 16:20:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:59,449 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 273 transitions. [2024-11-18 16:20:59,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 273 transitions. [2024-11-18 16:20:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:20:59,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:59,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:59,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:20:59,451 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:59,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:59,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1579621547, now seen corresponding path program 1 times [2024-11-18 16:20:59,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:59,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295768934] [2024-11-18 16:20:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:59,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:59,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:59,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295768934] [2024-11-18 16:20:59,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295768934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:59,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:59,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:20:59,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206069257] [2024-11-18 16:20:59,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:59,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:20:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:59,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:20:59,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:20:59,521 INFO L87 Difference]: Start difference. First operand 183 states and 273 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:20:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:59,539 INFO L93 Difference]: Finished difference Result 355 states and 529 transitions. [2024-11-18 16:20:59,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:20:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:20:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:59,541 INFO L225 Difference]: With dead ends: 355 [2024-11-18 16:20:59,541 INFO L226 Difference]: Without dead ends: 183 [2024-11-18 16:20:59,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:20:59,545 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 262 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:59,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 272 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:20:59,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-18 16:20:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-18 16:20:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 158 states have (on average 1.4936708860759493) internal successors, (236), 159 states have internal predecessors, (236), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-18 16:20:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 272 transitions. [2024-11-18 16:20:59,556 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 272 transitions. Word has length 90 [2024-11-18 16:20:59,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:59,556 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 272 transitions. [2024-11-18 16:20:59,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:20:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 272 transitions. [2024-11-18 16:20:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:20:59,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:59,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:20:59,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:20:59,560 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:59,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:59,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1876312087, now seen corresponding path program 1 times [2024-11-18 16:20:59,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:59,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479272350] [2024-11-18 16:20:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:59,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:59,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:59,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479272350] [2024-11-18 16:20:59,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479272350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:59,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:59,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:20:59,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035806601] [2024-11-18 16:20:59,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:59,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:20:59,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:20:59,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:20:59,666 INFO L87 Difference]: Start difference. First operand 183 states and 272 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:00,002 INFO L93 Difference]: Finished difference Result 539 states and 812 transitions. [2024-11-18 16:21:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:00,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:00,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:00,006 INFO L225 Difference]: With dead ends: 539 [2024-11-18 16:21:00,007 INFO L226 Difference]: Without dead ends: 369 [2024-11-18 16:21:00,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:00,008 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 476 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:00,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 734 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:21:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-18 16:21:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 356. [2024-11-18 16:21:00,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 311 states have (on average 1.5080385852090032) internal successors, (469), 313 states have internal predecessors, (469), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-18 16:21:00,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 532 transitions. [2024-11-18 16:21:00,035 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 532 transitions. Word has length 90 [2024-11-18 16:21:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:00,036 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 532 transitions. [2024-11-18 16:21:00,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 532 transitions. [2024-11-18 16:21:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:00,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:00,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:00,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:21:00,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:00,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash 701652635, now seen corresponding path program 1 times [2024-11-18 16:21:00,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:00,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208607892] [2024-11-18 16:21:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:00,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:00,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:00,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208607892] [2024-11-18 16:21:00,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208607892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:00,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:00,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:00,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975917618] [2024-11-18 16:21:00,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:00,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:00,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:00,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:00,185 INFO L87 Difference]: Start difference. First operand 356 states and 532 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:00,652 INFO L93 Difference]: Finished difference Result 914 states and 1381 transitions. [2024-11-18 16:21:00,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:00,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:00,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:00,656 INFO L225 Difference]: With dead ends: 914 [2024-11-18 16:21:00,657 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 16:21:00,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:00,660 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 470 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:00,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1385 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 16:21:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 518. [2024-11-18 16:21:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 453 states have (on average 1.5011037527593818) internal successors, (680), 456 states have internal predecessors, (680), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (48), 45 states have call predecessors, (48), 44 states have call successors, (48) [2024-11-18 16:21:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 772 transitions. [2024-11-18 16:21:00,692 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 772 transitions. Word has length 90 [2024-11-18 16:21:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:00,693 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 772 transitions. [2024-11-18 16:21:00,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 772 transitions. [2024-11-18 16:21:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:00,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:00,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:00,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:21:00,698 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:00,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:00,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1588875481, now seen corresponding path program 1 times [2024-11-18 16:21:00,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:00,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194552] [2024-11-18 16:21:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:00,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:00,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194552] [2024-11-18 16:21:00,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:00,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:00,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:00,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360717522] [2024-11-18 16:21:00,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:00,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:00,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:00,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:00,811 INFO L87 Difference]: Start difference. First operand 518 states and 772 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:01,341 INFO L93 Difference]: Finished difference Result 1422 states and 2144 transitions. [2024-11-18 16:21:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:01,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:01,348 INFO L225 Difference]: With dead ends: 1422 [2024-11-18 16:21:01,349 INFO L226 Difference]: Without dead ends: 917 [2024-11-18 16:21:01,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:01,353 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 465 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:01,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1369 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-18 16:21:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 859. [2024-11-18 16:21:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 752 states have (on average 1.5013297872340425) internal successors, (1129), 759 states have internal predecessors, (1129), 70 states have call successors, (70), 30 states have call predecessors, (70), 36 states have return successors, (86), 73 states have call predecessors, (86), 70 states have call successors, (86) [2024-11-18 16:21:01,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1285 transitions. [2024-11-18 16:21:01,430 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1285 transitions. Word has length 90 [2024-11-18 16:21:01,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:01,430 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1285 transitions. [2024-11-18 16:21:01,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1285 transitions. [2024-11-18 16:21:01,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:01,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:01,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:01,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:21:01,433 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:01,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash -322167077, now seen corresponding path program 1 times [2024-11-18 16:21:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:01,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185030188] [2024-11-18 16:21:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:01,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:01,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185030188] [2024-11-18 16:21:01,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185030188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:01,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:01,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893771803] [2024-11-18 16:21:01,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:01,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:01,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:01,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:01,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:01,562 INFO L87 Difference]: Start difference. First operand 859 states and 1285 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:01,999 INFO L93 Difference]: Finished difference Result 2501 states and 3799 transitions. [2024-11-18 16:21:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:02,009 INFO L225 Difference]: With dead ends: 2501 [2024-11-18 16:21:02,010 INFO L226 Difference]: Without dead ends: 1655 [2024-11-18 16:21:02,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:02,014 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 478 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:02,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 950 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:21:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-18 16:21:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1586. [2024-11-18 16:21:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1389 states have (on average 1.509719222462203) internal successors, (2097), 1410 states have internal predecessors, (2097), 122 states have call successors, (122), 54 states have call predecessors, (122), 74 states have return successors, (186), 129 states have call predecessors, (186), 122 states have call successors, (186) [2024-11-18 16:21:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2405 transitions. [2024-11-18 16:21:02,136 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2405 transitions. Word has length 90 [2024-11-18 16:21:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:02,138 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2405 transitions. [2024-11-18 16:21:02,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2405 transitions. [2024-11-18 16:21:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:02,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:02,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:02,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:21:02,142 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:02,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:02,144 INFO L85 PathProgramCache]: Analyzing trace with hash -245266279, now seen corresponding path program 1 times [2024-11-18 16:21:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:02,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846579610] [2024-11-18 16:21:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:02,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846579610] [2024-11-18 16:21:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846579610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:02,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:02,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483605173] [2024-11-18 16:21:02,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:02,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:02,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:02,268 INFO L87 Difference]: Start difference. First operand 1586 states and 2405 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:02,884 INFO L93 Difference]: Finished difference Result 4820 states and 7473 transitions. [2024-11-18 16:21:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:02,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:02,903 INFO L225 Difference]: With dead ends: 4820 [2024-11-18 16:21:02,904 INFO L226 Difference]: Without dead ends: 3247 [2024-11-18 16:21:02,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:02,911 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 455 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:02,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1345 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2024-11-18 16:21:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3157. [2024-11-18 16:21:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 2762 states have (on average 1.5238957277335263) internal successors, (4209), 2829 states have internal predecessors, (4209), 226 states have call successors, (226), 102 states have call predecessors, (226), 168 states have return successors, (482), 241 states have call predecessors, (482), 226 states have call successors, (482) [2024-11-18 16:21:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4917 transitions. [2024-11-18 16:21:03,162 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4917 transitions. Word has length 90 [2024-11-18 16:21:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:03,162 INFO L471 AbstractCegarLoop]: Abstraction has 3157 states and 4917 transitions. [2024-11-18 16:21:03,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4917 transitions. [2024-11-18 16:21:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:03,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:03,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:03,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:21:03,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:03,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:03,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1212616933, now seen corresponding path program 1 times [2024-11-18 16:21:03,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:03,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113951841] [2024-11-18 16:21:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:03,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113951841] [2024-11-18 16:21:03,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113951841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:03,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:03,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523989589] [2024-11-18 16:21:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:03,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:03,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:03,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:03,266 INFO L87 Difference]: Start difference. First operand 3157 states and 4917 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:04,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:04,082 INFO L93 Difference]: Finished difference Result 10167 states and 16300 transitions. [2024-11-18 16:21:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:04,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:04,125 INFO L225 Difference]: With dead ends: 10167 [2024-11-18 16:21:04,126 INFO L226 Difference]: Without dead ends: 7023 [2024-11-18 16:21:04,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:04,140 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 550 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:04,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1302 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2024-11-18 16:21:04,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 6387. [2024-11-18 16:21:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 5558 states have (on average 1.5356243252968693) internal successors, (8535), 5771 states have internal predecessors, (8535), 418 states have call successors, (418), 198 states have call predecessors, (418), 410 states have return successors, (1442), 449 states have call predecessors, (1442), 418 states have call successors, (1442) [2024-11-18 16:21:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 10395 transitions. [2024-11-18 16:21:04,676 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 10395 transitions. Word has length 90 [2024-11-18 16:21:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:04,676 INFO L471 AbstractCegarLoop]: Abstraction has 6387 states and 10395 transitions. [2024-11-18 16:21:04,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 10395 transitions. [2024-11-18 16:21:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:04,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:04,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:04,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:21:04,683 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:04,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1705243107, now seen corresponding path program 1 times [2024-11-18 16:21:04,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:04,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736691642] [2024-11-18 16:21:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:04,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:04,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:04,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:04,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736691642] [2024-11-18 16:21:04,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736691642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:04,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:04,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:04,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220911000] [2024-11-18 16:21:04,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:04,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:04,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:04,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:04,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:04,801 INFO L87 Difference]: Start difference. First operand 6387 states and 10395 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:06,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:06,216 INFO L93 Difference]: Finished difference Result 20677 states and 35296 transitions. [2024-11-18 16:21:06,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:06,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:06,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:06,328 INFO L225 Difference]: With dead ends: 20677 [2024-11-18 16:21:06,328 INFO L226 Difference]: Without dead ends: 14303 [2024-11-18 16:21:06,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:06,357 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 465 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:06,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1294 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2024-11-18 16:21:07,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 13446. [2024-11-18 16:21:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13446 states, 11603 states have (on average 1.5439972420925623) internal successors, (17915), 12270 states have internal predecessors, (17915), 786 states have call successors, (786), 390 states have call predecessors, (786), 1056 states have return successors, (4882), 849 states have call predecessors, (4882), 786 states have call successors, (4882) [2024-11-18 16:21:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13446 states to 13446 states and 23583 transitions. [2024-11-18 16:21:07,643 INFO L78 Accepts]: Start accepts. Automaton has 13446 states and 23583 transitions. Word has length 90 [2024-11-18 16:21:07,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:07,644 INFO L471 AbstractCegarLoop]: Abstraction has 13446 states and 23583 transitions. [2024-11-18 16:21:07,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 13446 states and 23583 transitions. [2024-11-18 16:21:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:07,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:07,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:07,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:21:07,656 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:07,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash -751302949, now seen corresponding path program 1 times [2024-11-18 16:21:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464652] [2024-11-18 16:21:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:07,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:07,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:07,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464652] [2024-11-18 16:21:07,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:07,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:07,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:07,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486977906] [2024-11-18 16:21:07,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:07,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:07,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:07,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:07,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:07,764 INFO L87 Difference]: Start difference. First operand 13446 states and 23583 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:10,299 INFO L93 Difference]: Finished difference Result 43290 states and 82306 transitions. [2024-11-18 16:21:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:10,504 INFO L225 Difference]: With dead ends: 43290 [2024-11-18 16:21:10,505 INFO L226 Difference]: Without dead ends: 29857 [2024-11-18 16:21:10,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:10,578 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 481 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:10,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1282 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29857 states. [2024-11-18 16:21:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29857 to 28683. [2024-11-18 16:21:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28683 states, 24358 states have (on average 1.541629033582396) internal successors, (37551), 26419 states have internal predecessors, (37551), 1490 states have call successors, (1490), 774 states have call predecessors, (1490), 2834 states have return successors, (17874), 1617 states have call predecessors, (17874), 1490 states have call successors, (17874) [2024-11-18 16:21:14,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28683 states to 28683 states and 56915 transitions. [2024-11-18 16:21:14,073 INFO L78 Accepts]: Start accepts. Automaton has 28683 states and 56915 transitions. Word has length 90 [2024-11-18 16:21:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:14,074 INFO L471 AbstractCegarLoop]: Abstraction has 28683 states and 56915 transitions. [2024-11-18 16:21:14,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:14,074 INFO L276 IsEmpty]: Start isEmpty. Operand 28683 states and 56915 transitions. [2024-11-18 16:21:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:14,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:14,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:14,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:21:14,097 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:14,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:14,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1967456675, now seen corresponding path program 1 times [2024-11-18 16:21:14,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:14,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721487550] [2024-11-18 16:21:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:14,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:14,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:14,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:14,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721487550] [2024-11-18 16:21:14,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721487550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:14,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:14,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:14,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581733325] [2024-11-18 16:21:14,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:14,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:14,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:14,221 INFO L87 Difference]: Start difference. First operand 28683 states and 56915 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:19,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:19,620 INFO L93 Difference]: Finished difference Result 91121 states and 206744 transitions. [2024-11-18 16:21:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:19,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:20,127 INFO L225 Difference]: With dead ends: 91121 [2024-11-18 16:21:20,127 INFO L226 Difference]: Without dead ends: 62451 [2024-11-18 16:21:20,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:20,216 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 446 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:20,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1270 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62451 states. [2024-11-18 16:21:26,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62451 to 61152. [2024-11-18 16:21:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61152 states, 50469 states have (on average 1.5183776179436883) internal successors, (76631), 56776 states have internal predecessors, (76631), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 7848 states have return successors, (68370), 3089 states have call predecessors, (68370), 2834 states have call successors, (68370) [2024-11-18 16:21:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61152 states to 61152 states and 147835 transitions. [2024-11-18 16:21:27,771 INFO L78 Accepts]: Start accepts. Automaton has 61152 states and 147835 transitions. Word has length 90 [2024-11-18 16:21:27,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:27,772 INFO L471 AbstractCegarLoop]: Abstraction has 61152 states and 147835 transitions. [2024-11-18 16:21:27,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:27,773 INFO L276 IsEmpty]: Start isEmpty. Operand 61152 states and 147835 transitions. [2024-11-18 16:21:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:27,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:27,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:27,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:21:27,820 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:27,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:27,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1595543195, now seen corresponding path program 1 times [2024-11-18 16:21:27,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:27,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955832795] [2024-11-18 16:21:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:27,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:27,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:27,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955832795] [2024-11-18 16:21:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955832795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:21:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914492033] [2024-11-18 16:21:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:27,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:21:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:21:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:27,923 INFO L87 Difference]: Start difference. First operand 61152 states and 147835 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:32,465 INFO L93 Difference]: Finished difference Result 123061 states and 297966 transitions. [2024-11-18 16:21:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:21:32,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-18 16:21:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:33,038 INFO L225 Difference]: With dead ends: 123061 [2024-11-18 16:21:33,038 INFO L226 Difference]: Without dead ends: 61923 [2024-11-18 16:21:33,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:33,229 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:33,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1070 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61923 states. [2024-11-18 16:21:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61923 to 61923. [2024-11-18 16:21:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61923 states, 51240 states have (on average 1.5105776736924277) internal successors, (77402), 57547 states have internal predecessors, (77402), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 7848 states have return successors, (68370), 3089 states have call predecessors, (68370), 2834 states have call successors, (68370) [2024-11-18 16:21:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61923 states to 61923 states and 148606 transitions. [2024-11-18 16:21:39,981 INFO L78 Accepts]: Start accepts. Automaton has 61923 states and 148606 transitions. Word has length 90 [2024-11-18 16:21:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:39,981 INFO L471 AbstractCegarLoop]: Abstraction has 61923 states and 148606 transitions. [2024-11-18 16:21:39,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 61923 states and 148606 transitions. [2024-11-18 16:21:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:21:40,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:40,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:40,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:21:40,018 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:40,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:40,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1438506851, now seen corresponding path program 1 times [2024-11-18 16:21:40,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:40,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753813506] [2024-11-18 16:21:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:40,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:40,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753813506] [2024-11-18 16:21:40,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753813506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:40,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:40,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:21:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139993711] [2024-11-18 16:21:40,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:40,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:21:40,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:21:40,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:21:40,068 INFO L87 Difference]: Start difference. First operand 61923 states and 148606 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)