./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.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 2b9ed7c85c1e945b329b46ea2facde1ef0195f46b3e9e9585453dabdeb816de5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:10:56,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:10:56,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:10:56,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:10:56,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:10:56,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:10:56,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:10:56,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:10:56,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:10:56,466 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:10:56,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:10:56,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:10:56,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:10:56,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:10:56,470 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:10:56,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:10:56,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:10:56,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:10:56,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:10:56,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:10:56,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:10:56,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:10:56,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:10:56,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:10:56,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:10:56,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:10:56,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:10:56,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:10:56,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:10:56,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:10:56,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:10:56,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:10:56,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:10:56,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:10:56,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:10:56,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:10:56,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:10:56,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:10:56,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:10:56,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:10:56,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:10:56,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:10:56,482 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b9ed7c85c1e945b329b46ea2facde1ef0195f46b3e9e9585453dabdeb816de5 [2024-11-20 00:10:56,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:10:56,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:10:56,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:10:56,764 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:10:56,764 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:10:56,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-20 00:10:58,221 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:10:58,422 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:10:58,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-20 00:10:58,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2670acbac/12e6717b426742cd97b1586e0835a013/FLAG25c5696f9 [2024-11-20 00:10:58,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2670acbac/12e6717b426742cd97b1586e0835a013 [2024-11-20 00:10:58,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:10:58,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:10:58,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:10:58,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:10:58,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:10:58,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:58,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7c4255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58, skipping insertion in model container [2024-11-20 00:10:58,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:58,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:10:58,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[911,924] [2024-11-20 00:10:58,781 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[8416,8429] [2024-11-20 00:10:58,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:10:58,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:10:58,879 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[911,924] [2024-11-20 00:10:58,905 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[8416,8429] [2024-11-20 00:10:58,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:10:58,991 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:10:58,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58 WrapperNode [2024-11-20 00:10:58,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:10:58,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:10:58,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:10:58,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:10:59,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,062 INFO L138 Inliner]: procedures = 65, calls = 76, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 686 [2024-11-20 00:10:59,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:10:59,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:10:59,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:10:59,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:10:59,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,080 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,099 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 00:10:59,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:10:59,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:10:59,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:10:59,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:10:59,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (1/1) ... [2024-11-20 00:10:59,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:10:59,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:10:59,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:10:59,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:10:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:10:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:10:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:10:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-20 00:10:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-20 00:10:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:10:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:10:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:10:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:10:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-20 00:10:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-20 00:10:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:10:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:10:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:10:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:10:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-20 00:10:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-20 00:10:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-20 00:10:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-20 00:10:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-20 00:10:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-20 00:10:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:10:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:10:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:10:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:10:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:10:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-20 00:10:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-20 00:10:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:10:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:10:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:10:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:10:59,379 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:10:59,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:11:00,074 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-20 00:11:00,075 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-20 00:11:00,246 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-20 00:11:00,246 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:11:00,273 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:11:00,275 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-20 00:11:00,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:00 BoogieIcfgContainer [2024-11-20 00:11:00,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:11:00,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:11:00,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:11:00,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:11:00,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:58" (1/3) ... [2024-11-20 00:11:00,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241a6781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:11:00, skipping insertion in model container [2024-11-20 00:11:00,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:58" (2/3) ... [2024-11-20 00:11:00,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241a6781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:11:00, skipping insertion in model container [2024-11-20 00:11:00,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:11:00" (3/3) ... [2024-11-20 00:11:00,284 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-20 00:11:00,296 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:11:00,296 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:11:00,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:11:00,372 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;@7b36102a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:11:00,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:11:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 284 states have internal predecessors, (440), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-20 00:11:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:00,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:00,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:00,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:00,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:00,394 INFO L85 PathProgramCache]: Analyzing trace with hash 341992279, now seen corresponding path program 1 times [2024-11-20 00:11:00,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:00,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441938160] [2024-11-20 00:11:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:00,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:00,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:00,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:00,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:00,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:01,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:01,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:01,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:01,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:01,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441938160] [2024-11-20 00:11:01,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441938160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:01,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:11:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858528754] [2024-11-20 00:11:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:01,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:11:01,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:01,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:11:01,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:01,057 INFO L87 Difference]: Start difference. First operand has 330 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 284 states have internal predecessors, (440), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:02,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:02,319 INFO L93 Difference]: Finished difference Result 790 states and 1221 transitions. [2024-11-20 00:11:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:02,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:11:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:02,342 INFO L225 Difference]: With dead ends: 790 [2024-11-20 00:11:02,342 INFO L226 Difference]: Without dead ends: 471 [2024-11-20 00:11:02,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:02,355 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 1093 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:02,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1204 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:11:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-20 00:11:02,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 432. [2024-11-20 00:11:02,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 360 states have (on average 1.475) internal successors, (531), 366 states have internal predecessors, (531), 48 states have call successors, (48), 21 states have call predecessors, (48), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-11-20 00:11:02,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-11-20 00:11:02,477 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 65 [2024-11-20 00:11:02,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:02,478 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-11-20 00:11:02,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:02,478 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-11-20 00:11:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:02,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:02,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:02,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:11:02,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:02,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:02,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2020880919, now seen corresponding path program 1 times [2024-11-20 00:11:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:02,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684333284] [2024-11-20 00:11:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:02,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:02,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684333284] [2024-11-20 00:11:02,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684333284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:02,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:02,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:11:02,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967902450] [2024-11-20 00:11:02,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:02,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:11:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:02,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:11:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:02,752 INFO L87 Difference]: Start difference. First operand 432 states and 630 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:03,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:03,973 INFO L93 Difference]: Finished difference Result 829 states and 1196 transitions. [2024-11-20 00:11:03,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 00:11:03,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:11:03,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:03,980 INFO L225 Difference]: With dead ends: 829 [2024-11-20 00:11:03,980 INFO L226 Difference]: Without dead ends: 620 [2024-11-20 00:11:03,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-20 00:11:03,982 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 921 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:03,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1771 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:11:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-20 00:11:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 544. [2024-11-20 00:11:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 450 states have (on average 1.46) internal successors, (657), 458 states have internal predecessors, (657), 61 states have call successors, (61), 28 states have call predecessors, (61), 31 states have return successors, (72), 61 states have call predecessors, (72), 59 states have call successors, (72) [2024-11-20 00:11:04,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 790 transitions. [2024-11-20 00:11:04,050 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 790 transitions. Word has length 65 [2024-11-20 00:11:04,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:04,051 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 790 transitions. [2024-11-20 00:11:04,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:04,051 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 790 transitions. [2024-11-20 00:11:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:11:04,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:04,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:04,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:11:04,055 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:04,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:04,056 INFO L85 PathProgramCache]: Analyzing trace with hash -7705191, now seen corresponding path program 1 times [2024-11-20 00:11:04,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:04,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017434363] [2024-11-20 00:11:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:04,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:11:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:11:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:11:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:04,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:04,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017434363] [2024-11-20 00:11:04,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017434363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:04,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:04,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:04,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975988318] [2024-11-20 00:11:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:04,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:04,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:04,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:04,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:04,238 INFO L87 Difference]: Start difference. First operand 544 states and 790 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:05,139 INFO L93 Difference]: Finished difference Result 1216 states and 1732 transitions. [2024-11-20 00:11:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:05,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-20 00:11:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:05,147 INFO L225 Difference]: With dead ends: 1216 [2024-11-20 00:11:05,147 INFO L226 Difference]: Without dead ends: 901 [2024-11-20 00:11:05,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:11:05,152 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 1016 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:05,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1361 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:11:05,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-20 00:11:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 825. [2024-11-20 00:11:05,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 676 states have (on average 1.4260355029585798) internal successors, (964), 688 states have internal predecessors, (964), 91 states have call successors, (91), 49 states have call predecessors, (91), 56 states have return successors, (110), 91 states have call predecessors, (110), 89 states have call successors, (110) [2024-11-20 00:11:05,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1165 transitions. [2024-11-20 00:11:05,259 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1165 transitions. Word has length 65 [2024-11-20 00:11:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:05,260 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1165 transitions. [2024-11-20 00:11:05,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1165 transitions. [2024-11-20 00:11:05,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 00:11:05,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:05,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:05,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:11:05,266 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:05,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:05,266 INFO L85 PathProgramCache]: Analyzing trace with hash 767651760, now seen corresponding path program 1 times [2024-11-20 00:11:05,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:05,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164578495] [2024-11-20 00:11:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:05,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 00:11:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 00:11:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:05,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:05,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164578495] [2024-11-20 00:11:05,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164578495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:05,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:05,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:11:05,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841134078] [2024-11-20 00:11:05,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:05,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:11:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:05,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:11:05,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:11:05,430 INFO L87 Difference]: Start difference. First operand 825 states and 1165 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:06,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:06,435 INFO L93 Difference]: Finished difference Result 1493 states and 2092 transitions. [2024-11-20 00:11:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:11:06,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-20 00:11:06,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:06,441 INFO L225 Difference]: With dead ends: 1493 [2024-11-20 00:11:06,441 INFO L226 Difference]: Without dead ends: 897 [2024-11-20 00:11:06,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:11:06,443 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 384 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:06,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1912 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:11:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-20 00:11:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 840. [2024-11-20 00:11:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 688 states have (on average 1.4142441860465116) internal successors, (973), 700 states have internal predecessors, (973), 91 states have call successors, (91), 49 states have call predecessors, (91), 59 states have return successors, (113), 94 states have call predecessors, (113), 89 states have call successors, (113) [2024-11-20 00:11:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1177 transitions. [2024-11-20 00:11:06,503 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1177 transitions. Word has length 66 [2024-11-20 00:11:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:06,505 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1177 transitions. [2024-11-20 00:11:06,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1177 transitions. [2024-11-20 00:11:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 00:11:06,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:06,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:06,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:11:06,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:06,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash -261707538, now seen corresponding path program 1 times [2024-11-20 00:11:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:06,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942350153] [2024-11-20 00:11:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:06,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 00:11:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 00:11:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:06,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942350153] [2024-11-20 00:11:06,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942350153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:06,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:06,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:11:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925024793] [2024-11-20 00:11:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:06,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:11:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:11:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:11:06,687 INFO L87 Difference]: Start difference. First operand 840 states and 1177 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:08,836 INFO L93 Difference]: Finished difference Result 3045 states and 4298 transitions. [2024-11-20 00:11:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 00:11:08,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-20 00:11:08,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:08,844 INFO L225 Difference]: With dead ends: 3045 [2024-11-20 00:11:08,844 INFO L226 Difference]: Without dead ends: 1203 [2024-11-20 00:11:08,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 00:11:08,851 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1732 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:08,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 2113 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 00:11:08,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-20 00:11:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1048. [2024-11-20 00:11:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 840 states have (on average 1.3773809523809524) internal successors, (1157), 856 states have internal predecessors, (1157), 121 states have call successors, (121), 70 states have call predecessors, (121), 85 states have return successors, (162), 125 states have call predecessors, (162), 119 states have call successors, (162) [2024-11-20 00:11:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1440 transitions. [2024-11-20 00:11:08,926 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1440 transitions. Word has length 66 [2024-11-20 00:11:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:08,926 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1440 transitions. [2024-11-20 00:11:08,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:11:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1440 transitions. [2024-11-20 00:11:08,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:11:08,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:08,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:08,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:11:08,928 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:08,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1668124653, now seen corresponding path program 1 times [2024-11-20 00:11:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:08,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877227451] [2024-11-20 00:11:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:08,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:08,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:08,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:09,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:09,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:09,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:09,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:09,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877227451] [2024-11-20 00:11:09,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877227451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:09,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:09,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:11:09,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301843476] [2024-11-20 00:11:09,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:09,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:11:09,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:11:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:11:09,058 INFO L87 Difference]: Start difference. First operand 1048 states and 1440 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:09,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:09,994 INFO L93 Difference]: Finished difference Result 2004 states and 2746 transitions. [2024-11-20 00:11:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:09,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-20 00:11:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:10,002 INFO L225 Difference]: With dead ends: 2004 [2024-11-20 00:11:10,002 INFO L226 Difference]: Without dead ends: 1185 [2024-11-20 00:11:10,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:10,006 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 567 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:10,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1656 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:11:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-20 00:11:10,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1093. [2024-11-20 00:11:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 876 states have (on average 1.3618721461187215) internal successors, (1193), 892 states have internal predecessors, (1193), 121 states have call successors, (121), 70 states have call predecessors, (121), 94 states have return successors, (171), 134 states have call predecessors, (171), 119 states have call successors, (171) [2024-11-20 00:11:10,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1485 transitions. [2024-11-20 00:11:10,075 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1485 transitions. Word has length 67 [2024-11-20 00:11:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:10,076 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1485 transitions. [2024-11-20 00:11:10,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1485 transitions. [2024-11-20 00:11:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:11:10,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:10,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:10,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:11:10,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:10,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:10,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1240639249, now seen corresponding path program 1 times [2024-11-20 00:11:10,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:10,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774362385] [2024-11-20 00:11:10,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:10,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:10,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:10,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774362385] [2024-11-20 00:11:10,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774362385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:10,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:10,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:11:10,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175514585] [2024-11-20 00:11:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:10,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:11:10,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:11:10,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:10,272 INFO L87 Difference]: Start difference. First operand 1093 states and 1485 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:11,321 INFO L93 Difference]: Finished difference Result 2073 states and 2788 transitions. [2024-11-20 00:11:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 00:11:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-20 00:11:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:11,329 INFO L225 Difference]: With dead ends: 2073 [2024-11-20 00:11:11,329 INFO L226 Difference]: Without dead ends: 1296 [2024-11-20 00:11:11,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-20 00:11:11,332 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1153 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:11,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1158 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:11:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-11-20 00:11:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1102. [2024-11-20 00:11:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 885 states have (on average 1.3559322033898304) internal successors, (1200), 899 states have internal predecessors, (1200), 122 states have call successors, (122), 71 states have call predecessors, (122), 93 states have return successors, (167), 135 states have call predecessors, (167), 120 states have call successors, (167) [2024-11-20 00:11:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1489 transitions. [2024-11-20 00:11:11,407 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1489 transitions. Word has length 67 [2024-11-20 00:11:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:11,407 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1489 transitions. [2024-11-20 00:11:11,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1489 transitions. [2024-11-20 00:11:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:11:11,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:11,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:11,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:11:11,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:11,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1374652755, now seen corresponding path program 1 times [2024-11-20 00:11:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035178785] [2024-11-20 00:11:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:11,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:11,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035178785] [2024-11-20 00:11:11,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035178785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:11,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:11,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009975103] [2024-11-20 00:11:11,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:11,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:11,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:11,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:11,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:11,522 INFO L87 Difference]: Start difference. First operand 1102 states and 1489 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:12,247 INFO L93 Difference]: Finished difference Result 2987 states and 4011 transitions. [2024-11-20 00:11:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:11:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-20 00:11:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:12,261 INFO L225 Difference]: With dead ends: 2987 [2024-11-20 00:11:12,261 INFO L226 Difference]: Without dead ends: 2117 [2024-11-20 00:11:12,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:11:12,265 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 1111 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:12,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 923 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:11:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-20 00:11:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 1951. [2024-11-20 00:11:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1539 states have (on average 1.3183885640025992) internal successors, (2029), 1566 states have internal predecessors, (2029), 226 states have call successors, (226), 135 states have call predecessors, (226), 184 states have return successors, (357), 256 states have call predecessors, (357), 224 states have call successors, (357) [2024-11-20 00:11:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2612 transitions. [2024-11-20 00:11:12,437 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2612 transitions. Word has length 67 [2024-11-20 00:11:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:12,438 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2612 transitions. [2024-11-20 00:11:12,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:11:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2612 transitions. [2024-11-20 00:11:12,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 00:11:12,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:12,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:12,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:11:12,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:12,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash -85322935, now seen corresponding path program 1 times [2024-11-20 00:11:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:12,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764546424] [2024-11-20 00:11:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:12,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:11:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:11:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:11:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 00:11:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 00:11:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:11:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:12,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:12,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764546424] [2024-11-20 00:11:12,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764546424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:12,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:12,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:11:12,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435839146] [2024-11-20 00:11:12,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:12,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:11:12,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:12,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:11:12,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:11:12,529 INFO L87 Difference]: Start difference. First operand 1951 states and 2612 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:13,019 INFO L93 Difference]: Finished difference Result 3674 states and 4968 transitions. [2024-11-20 00:11:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:11:13,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-20 00:11:13,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:13,024 INFO L225 Difference]: With dead ends: 3674 [2024-11-20 00:11:13,024 INFO L226 Difference]: Without dead ends: 209 [2024-11-20 00:11:13,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:11:13,063 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 939 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:13,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 658 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 00:11:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-20 00:11:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-20 00:11:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 184 states have internal predecessors, (277), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 00:11:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 315 transitions. [2024-11-20 00:11:13,074 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 315 transitions. Word has length 68 [2024-11-20 00:11:13,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:13,074 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 315 transitions. [2024-11-20 00:11:13,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:11:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 315 transitions. [2024-11-20 00:11:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:13,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:13,075 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:13,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:11:13,076 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:13,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:13,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1164243945, now seen corresponding path program 1 times [2024-11-20 00:11:13,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:13,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654344243] [2024-11-20 00:11:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:13,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:13,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:13,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654344243] [2024-11-20 00:11:13,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654344243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:13,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:13,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:11:13,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173118877] [2024-11-20 00:11:13,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:13,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:11:13,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:13,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:11:13,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:11:13,174 INFO L87 Difference]: Start difference. First operand 209 states and 315 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:13,767 INFO L93 Difference]: Finished difference Result 475 states and 731 transitions. [2024-11-20 00:11:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:11:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:13,770 INFO L225 Difference]: With dead ends: 475 [2024-11-20 00:11:13,770 INFO L226 Difference]: Without dead ends: 274 [2024-11-20 00:11:13,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:11:13,772 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 514 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:13,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 418 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:11:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-20 00:11:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 209. [2024-11-20 00:11:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 183 states have (on average 1.5081967213114753) internal successors, (276), 184 states have internal predecessors, (276), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 00:11:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 314 transitions. [2024-11-20 00:11:13,787 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 314 transitions. Word has length 101 [2024-11-20 00:11:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:13,787 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 314 transitions. [2024-11-20 00:11:13,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 314 transitions. [2024-11-20 00:11:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:13,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:13,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:13,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:11:13,789 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:13,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1135743655, now seen corresponding path program 1 times [2024-11-20 00:11:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:13,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89563175] [2024-11-20 00:11:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89563175] [2024-11-20 00:11:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89563175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:13,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:13,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:11:13,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058360634] [2024-11-20 00:11:13,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:13,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:11:13,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:11:13,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:11:13,916 INFO L87 Difference]: Start difference. First operand 209 states and 314 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:14,956 INFO L93 Difference]: Finished difference Result 733 states and 1133 transitions. [2024-11-20 00:11:14,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:11:14,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:14,960 INFO L225 Difference]: With dead ends: 733 [2024-11-20 00:11:14,960 INFO L226 Difference]: Without dead ends: 538 [2024-11-20 00:11:14,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:11:14,961 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 768 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:14,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 780 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:11:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-20 00:11:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 409. [2024-11-20 00:11:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 362 states have (on average 1.522099447513812) internal successors, (551), 364 states have internal predecessors, (551), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-20 00:11:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 620 transitions. [2024-11-20 00:11:14,987 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 620 transitions. Word has length 101 [2024-11-20 00:11:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:14,988 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 620 transitions. [2024-11-20 00:11:14,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 620 transitions. [2024-11-20 00:11:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:14,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:14,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:14,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:11:14,990 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:14,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1442339037, now seen corresponding path program 1 times [2024-11-20 00:11:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102704252] [2024-11-20 00:11:14,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:14,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:15,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102704252] [2024-11-20 00:11:15,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102704252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:15,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:15,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950152795] [2024-11-20 00:11:15,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:15,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:15,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:15,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:15,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:15,164 INFO L87 Difference]: Start difference. First operand 409 states and 620 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:16,560 INFO L93 Difference]: Finished difference Result 1205 states and 1862 transitions. [2024-11-20 00:11:16,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:16,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:16,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:16,565 INFO L225 Difference]: With dead ends: 1205 [2024-11-20 00:11:16,565 INFO L226 Difference]: Without dead ends: 810 [2024-11-20 00:11:16,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:16,568 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 781 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:16,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1346 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:11:16,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-20 00:11:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 597. [2024-11-20 00:11:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 529 states have (on average 1.5160680529300568) internal successors, (802), 532 states have internal predecessors, (802), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-20 00:11:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 901 transitions. [2024-11-20 00:11:16,641 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 901 transitions. Word has length 101 [2024-11-20 00:11:16,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:16,642 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 901 transitions. [2024-11-20 00:11:16,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 901 transitions. [2024-11-20 00:11:16,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:16,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:16,645 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:16,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:11:16,645 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:16,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:16,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1527772065, now seen corresponding path program 1 times [2024-11-20 00:11:16,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:16,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018160330] [2024-11-20 00:11:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:16,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:16,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:16,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018160330] [2024-11-20 00:11:16,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018160330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:16,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:16,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:16,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467364615] [2024-11-20 00:11:16,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:16,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:16,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:16,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:16,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:16,812 INFO L87 Difference]: Start difference. First operand 597 states and 901 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:18,414 INFO L93 Difference]: Finished difference Result 1898 states and 2923 transitions. [2024-11-20 00:11:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:18,422 INFO L225 Difference]: With dead ends: 1898 [2024-11-20 00:11:18,422 INFO L226 Difference]: Without dead ends: 1315 [2024-11-20 00:11:18,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:18,425 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 776 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:18,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1344 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:11:18,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-20 00:11:18,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 976. [2024-11-20 00:11:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 866 states have (on average 1.5115473441108545) internal successors, (1309), 871 states have internal predecessors, (1309), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-20 00:11:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1472 transitions. [2024-11-20 00:11:18,500 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1472 transitions. Word has length 101 [2024-11-20 00:11:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:18,501 INFO L471 AbstractCegarLoop]: Abstraction has 976 states and 1472 transitions. [2024-11-20 00:11:18,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:18,501 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1472 transitions. [2024-11-20 00:11:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:18,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:18,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:18,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:11:18,503 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:18,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:18,503 INFO L85 PathProgramCache]: Analyzing trace with hash 38985885, now seen corresponding path program 1 times [2024-11-20 00:11:18,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:18,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384419251] [2024-11-20 00:11:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:18,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:18,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384419251] [2024-11-20 00:11:18,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384419251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:18,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217270390] [2024-11-20 00:11:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:18,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:18,664 INFO L87 Difference]: Start difference. First operand 976 states and 1472 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:20,128 INFO L93 Difference]: Finished difference Result 3243 states and 4978 transitions. [2024-11-20 00:11:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:20,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:20,140 INFO L225 Difference]: With dead ends: 3243 [2024-11-20 00:11:20,140 INFO L226 Difference]: Without dead ends: 2281 [2024-11-20 00:11:20,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:20,144 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 775 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:20,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1344 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:11:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2024-11-20 00:11:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 1737. [2024-11-20 00:11:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1543 states have (on average 1.508101101749838) internal successors, (2327), 1552 states have internal predecessors, (2327), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-20 00:11:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2624 transitions. [2024-11-20 00:11:20,264 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2624 transitions. Word has length 101 [2024-11-20 00:11:20,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:20,265 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2624 transitions. [2024-11-20 00:11:20,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:20,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2624 transitions. [2024-11-20 00:11:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:20,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:20,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:20,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:11:20,268 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:20,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1018852193, now seen corresponding path program 1 times [2024-11-20 00:11:20,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:20,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866278995] [2024-11-20 00:11:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:20,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:20,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866278995] [2024-11-20 00:11:20,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866278995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:20,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:20,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:20,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704992666] [2024-11-20 00:11:20,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:20,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:20,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:20,424 INFO L87 Difference]: Start difference. First operand 1737 states and 2624 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:21,832 INFO L93 Difference]: Finished difference Result 5934 states and 9108 transitions. [2024-11-20 00:11:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:21,852 INFO L225 Difference]: With dead ends: 5934 [2024-11-20 00:11:21,852 INFO L226 Difference]: Without dead ends: 4211 [2024-11-20 00:11:21,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:21,859 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 819 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:21,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 857 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:11:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2024-11-20 00:11:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 3266. [2024-11-20 00:11:22,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3266 states, 2904 states have (on average 1.5058539944903582) internal successors, (4373), 2921 states have internal predecessors, (4373), 243 states have call successors, (243), 102 states have call predecessors, (243), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-20 00:11:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3266 states to 3266 states and 4956 transitions. [2024-11-20 00:11:22,108 INFO L78 Accepts]: Start accepts. Automaton has 3266 states and 4956 transitions. Word has length 101 [2024-11-20 00:11:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:22,108 INFO L471 AbstractCegarLoop]: Abstraction has 3266 states and 4956 transitions. [2024-11-20 00:11:22,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:22,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3266 states and 4956 transitions. [2024-11-20 00:11:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:22,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:22,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:22,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:11:22,113 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:22,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:22,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2133612637, now seen corresponding path program 1 times [2024-11-20 00:11:22,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:22,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661814301] [2024-11-20 00:11:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:22,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:22,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661814301] [2024-11-20 00:11:22,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661814301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:22,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:22,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682441202] [2024-11-20 00:11:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:22,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:22,304 INFO L87 Difference]: Start difference. First operand 3266 states and 4956 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:24,537 INFO L93 Difference]: Finished difference Result 12581 states and 19320 transitions. [2024-11-20 00:11:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:24,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:24,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:24,578 INFO L225 Difference]: With dead ends: 12581 [2024-11-20 00:11:24,579 INFO L226 Difference]: Without dead ends: 9329 [2024-11-20 00:11:24,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:24,593 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 826 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:24,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1334 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:11:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9329 states. [2024-11-20 00:11:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9329 to 6291. [2024-11-20 00:11:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6291 states, 5609 states have (on average 1.507398823319665) internal successors, (8455), 5642 states have internal predecessors, (8455), 451 states have call successors, (451), 198 states have call predecessors, (451), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-20 00:11:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6291 states to 6291 states and 9632 transitions. [2024-11-20 00:11:25,091 INFO L78 Accepts]: Start accepts. Automaton has 6291 states and 9632 transitions. Word has length 101 [2024-11-20 00:11:25,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:25,092 INFO L471 AbstractCegarLoop]: Abstraction has 6291 states and 9632 transitions. [2024-11-20 00:11:25,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:25,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6291 states and 9632 transitions. [2024-11-20 00:11:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:25,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:25,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:25,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:11:25,099 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:25,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1921114913, now seen corresponding path program 1 times [2024-11-20 00:11:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:25,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293007291] [2024-11-20 00:11:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:25,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:25,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293007291] [2024-11-20 00:11:25,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293007291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:25,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:25,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939317473] [2024-11-20 00:11:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:25,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:25,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:25,255 INFO L87 Difference]: Start difference. First operand 6291 states and 9632 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:27,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:27,559 INFO L93 Difference]: Finished difference Result 24084 states and 37246 transitions. [2024-11-20 00:11:27,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:27,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:27,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:27,622 INFO L225 Difference]: With dead ends: 24084 [2024-11-20 00:11:27,622 INFO L226 Difference]: Without dead ends: 17807 [2024-11-20 00:11:27,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:27,647 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 945 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:27,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 1330 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:11:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17807 states. [2024-11-20 00:11:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17807 to 12164. [2024-11-20 00:11:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12164 states, 10858 states have (on average 1.5082888193037391) internal successors, (16377), 10923 states have internal predecessors, (16377), 851 states have call successors, (851), 390 states have call predecessors, (851), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-20 00:11:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12164 states to 12164 states and 18872 transitions. [2024-11-20 00:11:28,608 INFO L78 Accepts]: Start accepts. Automaton has 12164 states and 18872 transitions. Word has length 101 [2024-11-20 00:11:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:28,608 INFO L471 AbstractCegarLoop]: Abstraction has 12164 states and 18872 transitions. [2024-11-20 00:11:28,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 12164 states and 18872 transitions. [2024-11-20 00:11:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:28,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:28,621 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:28,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:11:28,621 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:28,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:28,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1082081251, now seen corresponding path program 1 times [2024-11-20 00:11:28,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:28,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544296351] [2024-11-20 00:11:28,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:28,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:28,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544296351] [2024-11-20 00:11:28,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544296351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:28,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:28,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286302282] [2024-11-20 00:11:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:28,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:28,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:28,756 INFO L87 Difference]: Start difference. First operand 12164 states and 18872 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:32,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:32,225 INFO L93 Difference]: Finished difference Result 46019 states and 72004 transitions. [2024-11-20 00:11:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:32,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:32,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:32,361 INFO L225 Difference]: With dead ends: 46019 [2024-11-20 00:11:32,362 INFO L226 Difference]: Without dead ends: 33869 [2024-11-20 00:11:32,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:32,409 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 810 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:32,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 1334 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:11:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33869 states. [2024-11-20 00:11:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33869 to 24037. [2024-11-20 00:11:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24037 states, 21515 states have (on average 1.5108993725307924) internal successors, (32507), 21644 states have internal predecessors, (32507), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-20 00:11:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24037 states to 24037 states and 38060 transitions. [2024-11-20 00:11:34,793 INFO L78 Accepts]: Start accepts. Automaton has 24037 states and 38060 transitions. Word has length 101 [2024-11-20 00:11:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:34,794 INFO L471 AbstractCegarLoop]: Abstraction has 24037 states and 38060 transitions. [2024-11-20 00:11:34,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 24037 states and 38060 transitions. [2024-11-20 00:11:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:34,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:34,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:34,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:11:34,814 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:34,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1055015649, now seen corresponding path program 1 times [2024-11-20 00:11:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954759449] [2024-11-20 00:11:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:34,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:34,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:34,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954759449] [2024-11-20 00:11:34,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954759449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:34,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:34,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:34,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276169083] [2024-11-20 00:11:34,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:34,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:34,937 INFO L87 Difference]: Start difference. First operand 24037 states and 38060 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:40,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:40,760 INFO L93 Difference]: Finished difference Result 87200 states and 139462 transitions. [2024-11-20 00:11:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:40,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:41,040 INFO L225 Difference]: With dead ends: 87200 [2024-11-20 00:11:41,041 INFO L226 Difference]: Without dead ends: 63177 [2024-11-20 00:11:41,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:41,127 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 829 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:41,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1334 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:11:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63177 states. [2024-11-20 00:11:45,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63177 to 47847. [2024-11-20 00:11:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47847 states, 42957 states have (on average 1.5151663291198174) internal successors, (65087), 43214 states have internal predecessors, (65087), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-20 00:11:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47847 states to 47847 states and 78086 transitions. [2024-11-20 00:11:45,391 INFO L78 Accepts]: Start accepts. Automaton has 47847 states and 78086 transitions. Word has length 101 [2024-11-20 00:11:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:45,392 INFO L471 AbstractCegarLoop]: Abstraction has 47847 states and 78086 transitions. [2024-11-20 00:11:45,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 47847 states and 78086 transitions. [2024-11-20 00:11:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 00:11:45,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:45,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:45,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:11:45,430 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:45,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash 679088801, now seen corresponding path program 1 times [2024-11-20 00:11:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:45,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477360638] [2024-11-20 00:11:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 00:11:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-20 00:11:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 00:11:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:11:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:45,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:45,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477360638] [2024-11-20 00:11:45,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477360638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:45,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:45,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:45,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465160593] [2024-11-20 00:11:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:45,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:45,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:45,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:45,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:45,569 INFO L87 Difference]: Start difference. First operand 47847 states and 78086 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:11:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:54,494 INFO L93 Difference]: Finished difference Result 169248 states and 279518 transitions. [2024-11-20 00:11:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:11:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-20 00:11:54,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:55,281 INFO L225 Difference]: With dead ends: 169248 [2024-11-20 00:11:55,281 INFO L226 Difference]: Without dead ends: 121415 [2024-11-20 00:11:55,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:11:55,427 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 771 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:55,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1334 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:11:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121415 states.