./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:06:12,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:06:12,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:06:12,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:06:12,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:06:12,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:06:12,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:06:12,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:06:12,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:06:12,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:06:12,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:06:12,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:06:12,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:06:12,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:06:12,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:06:12,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:06:12,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:06:12,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:06:12,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:06:12,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:06:12,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:06:12,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:06:12,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:06:12,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:06:12,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:06:12,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:06:12,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:06:12,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:06:12,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:06:12,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:06:12,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:06:12,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:06:12,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:06:12,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:06:12,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:06:12,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:06:12,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:06:12,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:06:12,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:06:12,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:06:12,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:06:12,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:06:12,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c [2024-11-22 04:06:12,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:06:12,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:06:12,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:06:12,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:06:12,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:06:12,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-22 04:06:14,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:06:14,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:06:14,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-22 04:06:14,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6f2b7f5/f166b4c6f4d245c696f752b264b70450/FLAGa3348df9e [2024-11-22 04:06:14,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b6f2b7f5/f166b4c6f4d245c696f752b264b70450 [2024-11-22 04:06:14,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:06:14,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:06:14,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:06:14,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:06:14,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:06:14,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:06:14" (1/1) ... [2024-11-22 04:06:14,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18aac3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:14, skipping insertion in model container [2024-11-22 04:06:14,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:06:14" (1/1) ... [2024-11-22 04:06:14,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:06:14,755 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_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-22 04:06:14,802 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_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-22 04:06:14,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:06:14,938 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:06:14,950 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_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-22 04:06:14,967 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_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-22 04:06:15,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:06:15,031 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:06:15,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15 WrapperNode [2024-11-22 04:06:15,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:06:15,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:06:15,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:06:15,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:06:15,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,100 INFO L138 Inliner]: procedures = 77, calls = 93, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1068 [2024-11-22 04:06:15,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:06:15,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:06:15,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:06:15,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:06:15,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,136 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 04:06:15,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:06:15,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:06:15,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:06:15,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:06:15,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (1/1) ... [2024-11-22 04:06:15,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:06:15,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:15,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 04:06:15,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 04:06:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:06:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:06:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:06:15,274 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:06:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:06:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:06:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:06:15,275 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:06:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:06:15,276 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:06:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:06:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:06:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:06:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:06:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:06:15,277 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:06:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:06:15,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:06:15,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:06:16,255 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-22 04:06:16,255 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:06:16,287 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:06:16,289 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-22 04:06:16,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:06:16 BoogieIcfgContainer [2024-11-22 04:06:16,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:06:16,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:06:16,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:06:16,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:06:16,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:06:14" (1/3) ... [2024-11-22 04:06:16,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568a7d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:06:16, skipping insertion in model container [2024-11-22 04:06:16,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:06:15" (2/3) ... [2024-11-22 04:06:16,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568a7d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:06:16, skipping insertion in model container [2024-11-22 04:06:16,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:06:16" (3/3) ... [2024-11-22 04:06:16,303 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-22 04:06:16,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:06:16,321 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:06:16,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:06:16,413 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;@72062d5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:06:16,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:06:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 496 states, 439 states have (on average 1.6218678815489749) internal successors, (712), 445 states have internal predecessors, (712), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 04:06:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:16,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:16,431 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:16,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:16,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:16,436 INFO L85 PathProgramCache]: Analyzing trace with hash 979226068, now seen corresponding path program 1 times [2024-11-22 04:06:16,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:16,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463483363] [2024-11-22 04:06:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:16,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463483363] [2024-11-22 04:06:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463483363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:16,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:16,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:16,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755783395] [2024-11-22 04:06:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:16,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:16,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:16,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:16,986 INFO L87 Difference]: Start difference. First operand has 496 states, 439 states have (on average 1.6218678815489749) internal successors, (712), 445 states have internal predecessors, (712), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:17,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:17,925 INFO L93 Difference]: Finished difference Result 1067 states and 1696 transitions. [2024-11-22 04:06:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:17,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:17,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:17,944 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 04:06:17,945 INFO L226 Difference]: Without dead ends: 589 [2024-11-22 04:06:17,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:17,958 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 480 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:17,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1588 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 04:06:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-22 04:06:18,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 582. [2024-11-22 04:06:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 507 states have (on average 1.5128205128205128) internal successors, (767), 513 states have internal predecessors, (767), 51 states have call successors, (51), 21 states have call predecessors, (51), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2024-11-22 04:06:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 872 transitions. [2024-11-22 04:06:18,055 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 872 transitions. Word has length 65 [2024-11-22 04:06:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:18,055 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 872 transitions. [2024-11-22 04:06:18,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 872 transitions. [2024-11-22 04:06:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:18,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:18,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:18,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:06:18,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:18,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:18,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1383012019, now seen corresponding path program 1 times [2024-11-22 04:06:18,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:18,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521261252] [2024-11-22 04:06:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:18,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:18,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521261252] [2024-11-22 04:06:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521261252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:18,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787434579] [2024-11-22 04:06:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:18,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:18,248 INFO L87 Difference]: Start difference. First operand 582 states and 872 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:19,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:19,085 INFO L93 Difference]: Finished difference Result 899 states and 1303 transitions. [2024-11-22 04:06:19,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:19,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:19,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:19,090 INFO L225 Difference]: With dead ends: 899 [2024-11-22 04:06:19,090 INFO L226 Difference]: Without dead ends: 722 [2024-11-22 04:06:19,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:19,092 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1090 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:19,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1780 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-22 04:06:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 678. [2024-11-22 04:06:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 583 states have (on average 1.4939965694682675) internal successors, (871), 591 states have internal predecessors, (871), 62 states have call successors, (62), 28 states have call predecessors, (62), 31 states have return successors, (73), 62 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-22 04:06:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1006 transitions. [2024-11-22 04:06:19,133 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1006 transitions. Word has length 65 [2024-11-22 04:06:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:19,134 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 1006 transitions. [2024-11-22 04:06:19,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1006 transitions. [2024-11-22 04:06:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:19,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:19,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:19,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:06:19,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:19,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash -645574091, now seen corresponding path program 1 times [2024-11-22 04:06:19,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:19,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048156219] [2024-11-22 04:06:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:19,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:19,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048156219] [2024-11-22 04:06:19,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048156219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:19,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:19,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576340163] [2024-11-22 04:06:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:19,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:19,210 INFO L87 Difference]: Start difference. First operand 678 states and 1006 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:19,262 INFO L93 Difference]: Finished difference Result 950 states and 1379 transitions. [2024-11-22 04:06:19,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:19,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:06:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:19,267 INFO L225 Difference]: With dead ends: 950 [2024-11-22 04:06:19,267 INFO L226 Difference]: Without dead ends: 683 [2024-11-22 04:06:19,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:19,270 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:19,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3680 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-22 04:06:19,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2024-11-22 04:06:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 587 states have (on average 1.4872231686541737) internal successors, (873), 595 states have internal predecessors, (873), 62 states have call successors, (62), 28 states have call predecessors, (62), 32 states have return successors, (74), 63 states have call predecessors, (74), 60 states have call successors, (74) [2024-11-22 04:06:19,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1009 transitions. [2024-11-22 04:06:19,300 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1009 transitions. Word has length 65 [2024-11-22 04:06:19,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:19,301 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1009 transitions. [2024-11-22 04:06:19,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:19,301 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1009 transitions. [2024-11-22 04:06:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:19,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:19,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:19,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:06:19,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:19,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1674933389, now seen corresponding path program 1 times [2024-11-22 04:06:19,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:19,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824536560] [2024-11-22 04:06:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:19,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:19,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:19,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824536560] [2024-11-22 04:06:19,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824536560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:19,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:19,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:19,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233702239] [2024-11-22 04:06:19,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:19,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:19,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:19,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:19,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:19,367 INFO L87 Difference]: Start difference. First operand 683 states and 1009 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:06:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:19,903 INFO L93 Difference]: Finished difference Result 2702 states and 3786 transitions. [2024-11-22 04:06:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-22 04:06:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:19,916 INFO L225 Difference]: With dead ends: 2702 [2024-11-22 04:06:19,917 INFO L226 Difference]: Without dead ends: 2430 [2024-11-22 04:06:19,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:06:19,919 INFO L432 NwaCegarLoop]: 949 mSDtfsCounter, 2024 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:19,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 2782 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:19,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2024-11-22 04:06:20,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2273. [2024-11-22 04:06:20,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1838 states have (on average 1.369967355821545) internal successors, (2518), 1874 states have internal predecessors, (2518), 227 states have call successors, (227), 172 states have call predecessors, (227), 206 states have return successors, (343), 230 states have call predecessors, (343), 225 states have call successors, (343) [2024-11-22 04:06:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3088 transitions. [2024-11-22 04:06:20,032 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3088 transitions. Word has length 65 [2024-11-22 04:06:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:20,033 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3088 transitions. [2024-11-22 04:06:20,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:06:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3088 transitions. [2024-11-22 04:06:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:20,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:20,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:20,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:06:20,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:20,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:20,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2081723959, now seen corresponding path program 1 times [2024-11-22 04:06:20,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:20,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770644693] [2024-11-22 04:06:20,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:20,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:20,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770644693] [2024-11-22 04:06:20,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770644693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:20,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:20,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:20,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042257030] [2024-11-22 04:06:20,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:20,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:20,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:20,110 INFO L87 Difference]: Start difference. First operand 2273 states and 3088 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:20,223 INFO L93 Difference]: Finished difference Result 4180 states and 5645 transitions. [2024-11-22 04:06:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:06:20,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:20,233 INFO L225 Difference]: With dead ends: 4180 [2024-11-22 04:06:20,233 INFO L226 Difference]: Without dead ends: 2318 [2024-11-22 04:06:20,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:20,238 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 0 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:20,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3680 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-22 04:06:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2024-11-22 04:06:20,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1874 states have (on average 1.354855923159018) internal successors, (2539), 1910 states have internal predecessors, (2539), 227 states have call successors, (227), 172 states have call predecessors, (227), 215 states have return successors, (361), 239 states have call predecessors, (361), 225 states have call successors, (361) [2024-11-22 04:06:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3127 transitions. [2024-11-22 04:06:20,359 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3127 transitions. Word has length 65 [2024-11-22 04:06:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:20,361 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 3127 transitions. [2024-11-22 04:06:20,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3127 transitions. [2024-11-22 04:06:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:20,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:20,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:20,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:06:20,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:20,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:20,364 INFO L85 PathProgramCache]: Analyzing trace with hash -695520565, now seen corresponding path program 1 times [2024-11-22 04:06:20,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:20,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254973343] [2024-11-22 04:06:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:20,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:20,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254973343] [2024-11-22 04:06:20,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254973343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:20,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:20,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:20,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063598538] [2024-11-22 04:06:20,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:20,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:20,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:20,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:20,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:20,521 INFO L87 Difference]: Start difference. First operand 2318 states and 3127 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:21,432 INFO L93 Difference]: Finished difference Result 4068 states and 5370 transitions. [2024-11-22 04:06:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:06:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:21,443 INFO L225 Difference]: With dead ends: 4068 [2024-11-22 04:06:21,443 INFO L226 Difference]: Without dead ends: 2520 [2024-11-22 04:06:21,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:06:21,448 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1080 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:21,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1570 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2024-11-22 04:06:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2328. [2024-11-22 04:06:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2328 states, 1886 states have (on average 1.3488865323435844) internal successors, (2544), 1917 states have internal predecessors, (2544), 228 states have call successors, (228), 173 states have call predecessors, (228), 212 states have return successors, (345), 241 states have call predecessors, (345), 226 states have call successors, (345) [2024-11-22 04:06:21,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 3117 transitions. [2024-11-22 04:06:21,563 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 3117 transitions. Word has length 65 [2024-11-22 04:06:21,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:21,564 INFO L471 AbstractCegarLoop]: Abstraction has 2328 states and 3117 transitions. [2024-11-22 04:06:21,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 3117 transitions. [2024-11-22 04:06:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:06:21,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:21,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:21,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:06:21,566 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:21,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash -829534071, now seen corresponding path program 1 times [2024-11-22 04:06:21,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:21,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918692605] [2024-11-22 04:06:21,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:21,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:21,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:21,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918692605] [2024-11-22 04:06:21,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918692605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:21,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:21,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:06:21,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139034144] [2024-11-22 04:06:21,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:06:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:06:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:06:21,608 INFO L87 Difference]: Start difference. First operand 2328 states and 3117 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:22,217 INFO L93 Difference]: Finished difference Result 6080 states and 8014 transitions. [2024-11-22 04:06:22,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:06:22,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:06:22,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:22,239 INFO L225 Difference]: With dead ends: 6080 [2024-11-22 04:06:22,239 INFO L226 Difference]: Without dead ends: 4166 [2024-11-22 04:06:22,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:22,246 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1033 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:22,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 799 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2024-11-22 04:06:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4162. [2024-11-22 04:06:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 3307 states have (on average 1.299364983368612) internal successors, (4297), 3368 states have internal predecessors, (4297), 430 states have call successors, (430), 339 states have call predecessors, (430), 423 states have return successors, (723), 461 states have call predecessors, (723), 428 states have call successors, (723) [2024-11-22 04:06:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5450 transitions. [2024-11-22 04:06:22,525 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5450 transitions. Word has length 65 [2024-11-22 04:06:22,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:22,526 INFO L471 AbstractCegarLoop]: Abstraction has 4162 states and 5450 transitions. [2024-11-22 04:06:22,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:06:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5450 transitions. [2024-11-22 04:06:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:06:22,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:22,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:22,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:06:22,529 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:22,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:22,530 INFO L85 PathProgramCache]: Analyzing trace with hash 736767187, now seen corresponding path program 1 times [2024-11-22 04:06:22,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:22,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049103229] [2024-11-22 04:06:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:22,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:22,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:22,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049103229] [2024-11-22 04:06:22,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049103229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:22,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:22,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:22,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127174606] [2024-11-22 04:06:22,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:22,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:22,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:22,571 INFO L87 Difference]: Start difference. First operand 4162 states and 5450 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:22,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:22,879 INFO L93 Difference]: Finished difference Result 10348 states and 13525 transitions. [2024-11-22 04:06:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 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 66 [2024-11-22 04:06:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:22,905 INFO L225 Difference]: With dead ends: 10348 [2024-11-22 04:06:22,905 INFO L226 Difference]: Without dead ends: 6579 [2024-11-22 04:06:22,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:22,916 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 103 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:22,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1456 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2024-11-22 04:06:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6445. [2024-11-22 04:06:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6445 states, 5052 states have (on average 1.2816706254948536) internal successors, (6475), 5130 states have internal predecessors, (6475), 691 states have call successors, (691), 571 states have call predecessors, (691), 700 states have return successors, (1177), 750 states have call predecessors, (1177), 689 states have call successors, (1177) [2024-11-22 04:06:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6445 states to 6445 states and 8343 transitions. [2024-11-22 04:06:23,235 INFO L78 Accepts]: Start accepts. Automaton has 6445 states and 8343 transitions. Word has length 66 [2024-11-22 04:06:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:23,236 INFO L471 AbstractCegarLoop]: Abstraction has 6445 states and 8343 transitions. [2024-11-22 04:06:23,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6445 states and 8343 transitions. [2024-11-22 04:06:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:06:23,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:23,238 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:23,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:06:23,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:23,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash 429884498, now seen corresponding path program 1 times [2024-11-22 04:06:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:23,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225116352] [2024-11-22 04:06:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 04:06:23,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:23,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225116352] [2024-11-22 04:06:23,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225116352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:23,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:23,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:23,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925077348] [2024-11-22 04:06:23,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:23,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:23,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:23,294 INFO L87 Difference]: Start difference. First operand 6445 states and 8343 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:23,507 INFO L93 Difference]: Finished difference Result 8211 states and 10549 transitions. [2024-11-22 04:06:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:23,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 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 73 [2024-11-22 04:06:23,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:23,532 INFO L225 Difference]: With dead ends: 8211 [2024-11-22 04:06:23,532 INFO L226 Difference]: Without dead ends: 5397 [2024-11-22 04:06:23,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:23,539 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 703 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:23,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 844 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2024-11-22 04:06:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5305. [2024-11-22 04:06:23,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 4156 states have (on average 1.2641963426371512) internal successors, (5254), 4218 states have internal predecessors, (5254), 591 states have call successors, (591), 487 states have call predecessors, (591), 556 states have return successors, (862), 606 states have call predecessors, (862), 589 states have call successors, (862) [2024-11-22 04:06:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 6707 transitions. [2024-11-22 04:06:23,821 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 6707 transitions. Word has length 73 [2024-11-22 04:06:23,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:23,822 INFO L471 AbstractCegarLoop]: Abstraction has 5305 states and 6707 transitions. [2024-11-22 04:06:23,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:06:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 6707 transitions. [2024-11-22 04:06:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:06:23,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:23,828 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:23,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:06:23,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:23,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1028355161, now seen corresponding path program 1 times [2024-11-22 04:06:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:23,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180051385] [2024-11-22 04:06:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180051385] [2024-11-22 04:06:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180051385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:06:23,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089713804] [2024-11-22 04:06:23,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:23,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:06:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:06:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:06:23,892 INFO L87 Difference]: Start difference. First operand 5305 states and 6707 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:24,363 INFO L93 Difference]: Finished difference Result 6468 states and 8131 transitions. [2024-11-22 04:06:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:24,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-22 04:06:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:24,387 INFO L225 Difference]: With dead ends: 6468 [2024-11-22 04:06:24,388 INFO L226 Difference]: Without dead ends: 6465 [2024-11-22 04:06:24,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:24,391 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1386 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:24,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 836 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:06:24,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2024-11-22 04:06:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 6363. [2024-11-22 04:06:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6363 states, 4963 states have (on average 1.2548861575659882) internal successors, (6228), 5034 states have internal predecessors, (6228), 717 states have call successors, (717), 601 states have call predecessors, (717), 681 states have return successors, (1055), 734 states have call predecessors, (1055), 716 states have call successors, (1055) [2024-11-22 04:06:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 8000 transitions. [2024-11-22 04:06:24,744 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 8000 transitions. Word has length 73 [2024-11-22 04:06:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:24,744 INFO L471 AbstractCegarLoop]: Abstraction has 6363 states and 8000 transitions. [2024-11-22 04:06:24,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 8000 transitions. [2024-11-22 04:06:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 04:06:24,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:24,747 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:24,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:06:24,747 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:24,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:24,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1815685188, now seen corresponding path program 1 times [2024-11-22 04:06:24,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:24,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874626039] [2024-11-22 04:06:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:24,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874626039] [2024-11-22 04:06:24,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874626039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:24,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3845234] [2024-11-22 04:06:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:24,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:24,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:24,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:24,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:06:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:24,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:06:24,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:25,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:06:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:25,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3845234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:06:25,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:06:25,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-22 04:06:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184090635] [2024-11-22 04:06:25,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:06:25,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:06:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:06:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:25,292 INFO L87 Difference]: Start difference. First operand 6363 states and 8000 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:06:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:26,339 INFO L93 Difference]: Finished difference Result 13391 states and 16635 transitions. [2024-11-22 04:06:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:06:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-22 04:06:26,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:26,394 INFO L225 Difference]: With dead ends: 13391 [2024-11-22 04:06:26,394 INFO L226 Difference]: Without dead ends: 13388 [2024-11-22 04:06:26,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:26,403 INFO L432 NwaCegarLoop]: 927 mSDtfsCounter, 1707 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:26,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 3318 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:26,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13388 states. [2024-11-22 04:06:27,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13388 to 12022. [2024-11-22 04:06:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12022 states, 9342 states have (on average 1.2427745664739884) internal successors, (11610), 9477 states have internal predecessors, (11610), 1349 states have call successors, (1349), 1151 states have call predecessors, (1349), 1329 states have return successors, (2007), 1400 states have call predecessors, (2007), 1348 states have call successors, (2007) [2024-11-22 04:06:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12022 states to 12022 states and 14966 transitions. [2024-11-22 04:06:27,391 INFO L78 Accepts]: Start accepts. Automaton has 12022 states and 14966 transitions. Word has length 74 [2024-11-22 04:06:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:27,391 INFO L471 AbstractCegarLoop]: Abstraction has 12022 states and 14966 transitions. [2024-11-22 04:06:27,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:06:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 12022 states and 14966 transitions. [2024-11-22 04:06:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 04:06:27,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:27,394 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:27,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:06:27,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 04:06:27,595 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:27,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1893751961, now seen corresponding path program 2 times [2024-11-22 04:06:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:27,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24816213] [2024-11-22 04:06:27,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:06:27,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:27,612 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 04:06:27,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:06:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:27,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:27,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24816213] [2024-11-22 04:06:27,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24816213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:27,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063386460] [2024-11-22 04:06:27,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:27,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:27,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:27,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:27,635 INFO L87 Difference]: Start difference. First operand 12022 states and 14966 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:27,994 INFO L93 Difference]: Finished difference Result 17202 states and 21421 transitions. [2024-11-22 04:06:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:27,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-22 04:06:27,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:28,026 INFO L225 Difference]: With dead ends: 17202 [2024-11-22 04:06:28,027 INFO L226 Difference]: Without dead ends: 6461 [2024-11-22 04:06:28,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:28,052 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 707 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:28,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 933 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2024-11-22 04:06:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 5434. [2024-11-22 04:06:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 4282 states have (on average 1.2333021952358711) internal successors, (5281), 4337 states have internal predecessors, (5281), 589 states have call successors, (589), 486 states have call predecessors, (589), 561 states have return successors, (824), 617 states have call predecessors, (824), 588 states have call successors, (824) [2024-11-22 04:06:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 6694 transitions. [2024-11-22 04:06:28,392 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 6694 transitions. Word has length 77 [2024-11-22 04:06:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:28,392 INFO L471 AbstractCegarLoop]: Abstraction has 5434 states and 6694 transitions. [2024-11-22 04:06:28,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:06:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 6694 transitions. [2024-11-22 04:06:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 04:06:28,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:28,395 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:28,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:06:28,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:28,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1945352814, now seen corresponding path program 1 times [2024-11-22 04:06:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:28,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049033603] [2024-11-22 04:06:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:28,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 04:06:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049033603] [2024-11-22 04:06:28,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049033603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:28,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:28,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346902236] [2024-11-22 04:06:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:28,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:28,479 INFO L87 Difference]: Start difference. First operand 5434 states and 6694 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:29,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:29,956 INFO L93 Difference]: Finished difference Result 15328 states and 18681 transitions. [2024-11-22 04:06:29,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:06:29,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-22 04:06:29,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:29,987 INFO L225 Difference]: With dead ends: 15328 [2024-11-22 04:06:29,988 INFO L226 Difference]: Without dead ends: 7897 [2024-11-22 04:06:30,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-22 04:06:30,004 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 762 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:30,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2084 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 04:06:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2024-11-22 04:06:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7276. [2024-11-22 04:06:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7276 states, 5696 states have (on average 1.2008426966292134) internal successors, (6840), 5779 states have internal predecessors, (6840), 790 states have call successors, (790), 661 states have call predecessors, (790), 788 states have return successors, (1164), 842 states have call predecessors, (1164), 789 states have call successors, (1164) [2024-11-22 04:06:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7276 states to 7276 states and 8794 transitions. [2024-11-22 04:06:30,472 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 8794 transitions. Word has length 84 [2024-11-22 04:06:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:30,473 INFO L471 AbstractCegarLoop]: Abstraction has 7276 states and 8794 transitions. [2024-11-22 04:06:30,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 8794 transitions. [2024-11-22 04:06:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 04:06:30,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:30,479 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:30,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:06:30,480 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:30,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1590667909, now seen corresponding path program 1 times [2024-11-22 04:06:30,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728314304] [2024-11-22 04:06:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:30,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 04:06:30,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:30,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728314304] [2024-11-22 04:06:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728314304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:30,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:30,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:06:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739313807] [2024-11-22 04:06:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:30,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:06:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:30,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:06:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:30,583 INFO L87 Difference]: Start difference. First operand 7276 states and 8794 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:32,249 INFO L93 Difference]: Finished difference Result 12913 states and 15506 transitions. [2024-11-22 04:06:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 04:06:32,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-22 04:06:32,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:32,282 INFO L225 Difference]: With dead ends: 12913 [2024-11-22 04:06:32,282 INFO L226 Difference]: Without dead ends: 6678 [2024-11-22 04:06:32,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:06:32,299 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1671 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:32,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 2142 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:06:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2024-11-22 04:06:32,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 6349. [2024-11-22 04:06:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6349 states, 4984 states have (on average 1.1946227929373996) internal successors, (5954), 5055 states have internal predecessors, (5954), 681 states have call successors, (681), 565 states have call predecessors, (681), 682 states have return successors, (927), 735 states have call predecessors, (927), 680 states have call successors, (927) [2024-11-22 04:06:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 7562 transitions. [2024-11-22 04:06:32,836 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 7562 transitions. Word has length 93 [2024-11-22 04:06:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:32,836 INFO L471 AbstractCegarLoop]: Abstraction has 6349 states and 7562 transitions. [2024-11-22 04:06:32,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:06:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 7562 transitions. [2024-11-22 04:06:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:06:32,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:32,842 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:32,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:06:32,842 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:32,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:32,843 INFO L85 PathProgramCache]: Analyzing trace with hash 550789760, now seen corresponding path program 1 times [2024-11-22 04:06:32,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:32,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870330961] [2024-11-22 04:06:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:32,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 04:06:32,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:32,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870330961] [2024-11-22 04:06:32,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870330961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:32,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924678635] [2024-11-22 04:06:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:32,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:32,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:32,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 04:06:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:33,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 04:06:33,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 04:06:33,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:06:33,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924678635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:33,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:06:33,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 04:06:33,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157275189] [2024-11-22 04:06:33,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:33,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:33,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:06:33,090 INFO L87 Difference]: Start difference. First operand 6349 states and 7562 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 04:06:33,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:33,241 INFO L93 Difference]: Finished difference Result 8680 states and 10285 transitions. [2024-11-22 04:06:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:33,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-22 04:06:33,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:33,259 INFO L225 Difference]: With dead ends: 8680 [2024-11-22 04:06:33,259 INFO L226 Difference]: Without dead ends: 2748 [2024-11-22 04:06:33,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:06:33,269 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 0 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:33,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3656 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2024-11-22 04:06:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2698. [2024-11-22 04:06:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2198 states have (on average 1.218835304822566) internal successors, (2679), 2216 states have internal predecessors, (2679), 251 states have call successors, (251), 195 states have call predecessors, (251), 247 states have return successors, (352), 287 states have call predecessors, (352), 250 states have call successors, (352) [2024-11-22 04:06:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3282 transitions. [2024-11-22 04:06:33,412 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3282 transitions. Word has length 145 [2024-11-22 04:06:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:33,412 INFO L471 AbstractCegarLoop]: Abstraction has 2698 states and 3282 transitions. [2024-11-22 04:06:33,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 04:06:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3282 transitions. [2024-11-22 04:06:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 04:06:33,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:33,417 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:33,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 04:06:33,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 04:06:33,619 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:33,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1471186026, now seen corresponding path program 1 times [2024-11-22 04:06:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811163691] [2024-11-22 04:06:33,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:06:33,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:33,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811163691] [2024-11-22 04:06:33,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811163691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:33,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:33,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:33,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821015757] [2024-11-22 04:06:33,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:33,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:33,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:33,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:33,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:33,654 INFO L87 Difference]: Start difference. First operand 2698 states and 3282 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:06:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:33,761 INFO L93 Difference]: Finished difference Result 3026 states and 3663 transitions. [2024-11-22 04:06:33,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:33,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-22 04:06:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:33,778 INFO L225 Difference]: With dead ends: 3026 [2024-11-22 04:06:33,778 INFO L226 Difference]: Without dead ends: 2272 [2024-11-22 04:06:33,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:33,780 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 122 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:33,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1342 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2024-11-22 04:06:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2272. [2024-11-22 04:06:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 1868 states have (on average 1.2317987152034262) internal successors, (2301), 1883 states have internal predecessors, (2301), 205 states have call successors, (205), 155 states have call predecessors, (205), 197 states have return successors, (289), 234 states have call predecessors, (289), 204 states have call successors, (289) [2024-11-22 04:06:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 2795 transitions. [2024-11-22 04:06:33,948 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 2795 transitions. Word has length 147 [2024-11-22 04:06:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:33,948 INFO L471 AbstractCegarLoop]: Abstraction has 2272 states and 2795 transitions. [2024-11-22 04:06:33,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:06:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 2795 transitions. [2024-11-22 04:06:33,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 04:06:33,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:33,954 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:33,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:06:33,954 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:33,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1328194749, now seen corresponding path program 1 times [2024-11-22 04:06:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:33,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712437981] [2024-11-22 04:06:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:33,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-22 04:06:34,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:34,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712437981] [2024-11-22 04:06:34,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712437981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:34,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:34,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:34,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337117740] [2024-11-22 04:06:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:34,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:34,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:34,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:34,044 INFO L87 Difference]: Start difference. First operand 2272 states and 2795 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 04:06:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:34,864 INFO L93 Difference]: Finished difference Result 3805 states and 4616 transitions. [2024-11-22 04:06:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:34,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-22 04:06:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:34,882 INFO L225 Difference]: With dead ends: 3805 [2024-11-22 04:06:34,883 INFO L226 Difference]: Without dead ends: 2264 [2024-11-22 04:06:34,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:06:34,888 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 358 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:34,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1537 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2024-11-22 04:06:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2143. [2024-11-22 04:06:35,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 1769 states have (on average 1.2419446014697568) internal successors, (2197), 1788 states have internal predecessors, (2197), 189 states have call successors, (189), 143 states have call predecessors, (189), 183 states have return successors, (266), 212 states have call predecessors, (266), 188 states have call successors, (266) [2024-11-22 04:06:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 2652 transitions. [2024-11-22 04:06:35,055 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 2652 transitions. Word has length 159 [2024-11-22 04:06:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:35,056 INFO L471 AbstractCegarLoop]: Abstraction has 2143 states and 2652 transitions. [2024-11-22 04:06:35,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 04:06:35,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 2652 transitions. [2024-11-22 04:06:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 04:06:35,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:35,059 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:35,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:06:35,060 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:35,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -151865013, now seen corresponding path program 1 times [2024-11-22 04:06:35,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:35,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051109362] [2024-11-22 04:06:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:35,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-22 04:06:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:35,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051109362] [2024-11-22 04:06:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051109362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:35,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567720853] [2024-11-22 04:06:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:35,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:35,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:35,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:35,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 04:06:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:35,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:06:35,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 04:06:35,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:06:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-22 04:06:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567720853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:06:35,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:06:35,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2024-11-22 04:06:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117083540] [2024-11-22 04:06:35,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:06:35,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 04:06:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 04:06:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-22 04:06:35,800 INFO L87 Difference]: Start difference. First operand 2143 states and 2652 transitions. Second operand has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-22 04:06:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:37,097 INFO L93 Difference]: Finished difference Result 4222 states and 5185 transitions. [2024-11-22 04:06:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 04:06:37,098 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 162 [2024-11-22 04:06:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:37,109 INFO L225 Difference]: With dead ends: 4222 [2024-11-22 04:06:37,109 INFO L226 Difference]: Without dead ends: 2437 [2024-11-22 04:06:37,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 332 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-22 04:06:37,117 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1753 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:37,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 2134 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 04:06:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-11-22 04:06:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2181. [2024-11-22 04:06:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1771 states have (on average 1.2213438735177866) internal successors, (2163), 1795 states have internal predecessors, (2163), 208 states have call successors, (208), 164 states have call predecessors, (208), 200 states have return successors, (314), 222 states have call predecessors, (314), 207 states have call successors, (314) [2024-11-22 04:06:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2685 transitions. [2024-11-22 04:06:37,243 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2685 transitions. Word has length 162 [2024-11-22 04:06:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:37,243 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 2685 transitions. [2024-11-22 04:06:37,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-22 04:06:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2685 transitions. [2024-11-22 04:06:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 04:06:37,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:37,247 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:37,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 04:06:37,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 04:06:37,448 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:37,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1717433843, now seen corresponding path program 1 times [2024-11-22 04:06:37,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:37,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511958834] [2024-11-22 04:06:37,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:37,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-22 04:06:37,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511958834] [2024-11-22 04:06:37,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511958834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71158111] [2024-11-22 04:06:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:37,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:37,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:37,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:37,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 04:06:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:37,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 04:06:37,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-22 04:06:37,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:06:37,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71158111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:37,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:06:37,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:06:37,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466094018] [2024-11-22 04:06:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:37,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:37,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:06:37,693 INFO L87 Difference]: Start difference. First operand 2181 states and 2685 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 04:06:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:38,288 INFO L93 Difference]: Finished difference Result 3864 states and 4646 transitions. [2024-11-22 04:06:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:06:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-22 04:06:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:38,299 INFO L225 Difference]: With dead ends: 3864 [2024-11-22 04:06:38,299 INFO L226 Difference]: Without dead ends: 1903 [2024-11-22 04:06:38,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:06:38,302 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 998 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:38,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1109 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2024-11-22 04:06:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1826. [2024-11-22 04:06:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2306149732620322) internal successors, (1841), 1510 states have internal predecessors, (1841), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-22 04:06:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2252 transitions. [2024-11-22 04:06:38,411 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2252 transitions. Word has length 179 [2024-11-22 04:06:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:38,412 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2252 transitions. [2024-11-22 04:06:38,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 04:06:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2252 transitions. [2024-11-22 04:06:38,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:38,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:38,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:38,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 04:06:38,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:38,616 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:38,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1270378032, now seen corresponding path program 1 times [2024-11-22 04:06:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:38,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466162001] [2024-11-22 04:06:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:38,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:38,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466162001] [2024-11-22 04:06:38,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466162001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:38,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:38,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:38,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138755587] [2024-11-22 04:06:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:38,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:38,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:38,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:38,668 INFO L87 Difference]: Start difference. First operand 1826 states and 2252 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:38,756 INFO L93 Difference]: Finished difference Result 2207 states and 2846 transitions. [2024-11-22 04:06:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:38,765 INFO L225 Difference]: With dead ends: 2207 [2024-11-22 04:06:38,765 INFO L226 Difference]: Without dead ends: 1826 [2024-11-22 04:06:38,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:38,766 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 599 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:38,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 860 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-22 04:06:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2024-11-22 04:06:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2299465240641712) internal successors, (1840), 1510 states have internal predecessors, (1840), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-22 04:06:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2251 transitions. [2024-11-22 04:06:38,865 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2251 transitions. Word has length 178 [2024-11-22 04:06:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:38,865 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2251 transitions. [2024-11-22 04:06:38,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2251 transitions. [2024-11-22 04:06:38,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:38,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:38,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:38,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:06:38,868 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:38,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1616863314, now seen corresponding path program 1 times [2024-11-22 04:06:38,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123296692] [2024-11-22 04:06:38,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:38,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123296692] [2024-11-22 04:06:38,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123296692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:38,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:38,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:06:38,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726913544] [2024-11-22 04:06:38,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:38,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:38,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:38,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:38,911 INFO L87 Difference]: Start difference. First operand 1826 states and 2251 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:39,001 INFO L93 Difference]: Finished difference Result 2199 states and 2829 transitions. [2024-11-22 04:06:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:39,012 INFO L225 Difference]: With dead ends: 2199 [2024-11-22 04:06:39,013 INFO L226 Difference]: Without dead ends: 1826 [2024-11-22 04:06:39,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:06:39,015 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 590 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:39,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 859 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:39,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-22 04:06:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2024-11-22 04:06:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2292780748663101) internal successors, (1839), 1510 states have internal predecessors, (1839), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-22 04:06:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2250 transitions. [2024-11-22 04:06:39,120 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2250 transitions. Word has length 178 [2024-11-22 04:06:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:39,120 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2250 transitions. [2024-11-22 04:06:39,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2250 transitions. [2024-11-22 04:06:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:39,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:39,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:39,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:06:39,123 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:39,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2010722092, now seen corresponding path program 1 times [2024-11-22 04:06:39,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:39,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141637412] [2024-11-22 04:06:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:39,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:39,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141637412] [2024-11-22 04:06:39,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141637412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:39,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:39,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:39,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068701331] [2024-11-22 04:06:39,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:39,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:39,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:39,237 INFO L87 Difference]: Start difference. First operand 1826 states and 2250 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:39,779 INFO L93 Difference]: Finished difference Result 2614 states and 3494 transitions. [2024-11-22 04:06:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:06:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:39,789 INFO L225 Difference]: With dead ends: 2614 [2024-11-22 04:06:39,790 INFO L226 Difference]: Without dead ends: 2244 [2024-11-22 04:06:39,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:39,791 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 1326 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:39,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1852 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:06:39,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2024-11-22 04:06:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2215. [2024-11-22 04:06:39,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1857 states have (on average 1.2967151319332257) internal successors, (2408), 1872 states have internal predecessors, (2408), 192 states have call successors, (192), 136 states have call predecessors, (192), 164 states have return successors, (262), 207 states have call predecessors, (262), 191 states have call successors, (262) [2024-11-22 04:06:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2862 transitions. [2024-11-22 04:06:39,911 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2862 transitions. Word has length 178 [2024-11-22 04:06:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:39,911 INFO L471 AbstractCegarLoop]: Abstraction has 2215 states and 2862 transitions. [2024-11-22 04:06:39,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2862 transitions. [2024-11-22 04:06:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:39,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:39,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:39,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:06:39,914 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:39,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1134736816, now seen corresponding path program 1 times [2024-11-22 04:06:39,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:39,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703076545] [2024-11-22 04:06:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:40,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703076545] [2024-11-22 04:06:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703076545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:40,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:40,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:40,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328456773] [2024-11-22 04:06:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:40,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:40,031 INFO L87 Difference]: Start difference. First operand 2215 states and 2862 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:40,792 INFO L93 Difference]: Finished difference Result 3464 states and 4853 transitions. [2024-11-22 04:06:40,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:40,803 INFO L225 Difference]: With dead ends: 3464 [2024-11-22 04:06:40,803 INFO L226 Difference]: Without dead ends: 2705 [2024-11-22 04:06:40,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:40,805 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 1333 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:40,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 3482 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-11-22 04:06:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2576. [2024-11-22 04:06:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2576 states, 2190 states have (on average 1.3337899543378995) internal successors, (2921), 2206 states have internal predecessors, (2921), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-22 04:06:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3420 transitions. [2024-11-22 04:06:40,949 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3420 transitions. Word has length 178 [2024-11-22 04:06:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:40,949 INFO L471 AbstractCegarLoop]: Abstraction has 2576 states and 3420 transitions. [2024-11-22 04:06:40,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:40,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3420 transitions. [2024-11-22 04:06:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:40,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:40,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:40,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:06:40,952 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:40,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:40,953 INFO L85 PathProgramCache]: Analyzing trace with hash -270454862, now seen corresponding path program 1 times [2024-11-22 04:06:40,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:40,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807177239] [2024-11-22 04:06:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:40,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:41,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:41,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:41,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807177239] [2024-11-22 04:06:41,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807177239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:41,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:41,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247870318] [2024-11-22 04:06:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:41,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:41,050 INFO L87 Difference]: Start difference. First operand 2576 states and 3420 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:41,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:41,507 INFO L93 Difference]: Finished difference Result 3816 states and 5400 transitions. [2024-11-22 04:06:41,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:41,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:41,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:41,521 INFO L225 Difference]: With dead ends: 3816 [2024-11-22 04:06:41,521 INFO L226 Difference]: Without dead ends: 2696 [2024-11-22 04:06:41,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:41,525 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 986 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:41,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1383 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:41,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-11-22 04:06:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2576. [2024-11-22 04:06:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2576 states, 2190 states have (on average 1.3324200913242008) internal successors, (2918), 2206 states have internal predecessors, (2918), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-22 04:06:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3417 transitions. [2024-11-22 04:06:41,695 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3417 transitions. Word has length 178 [2024-11-22 04:06:41,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:41,695 INFO L471 AbstractCegarLoop]: Abstraction has 2576 states and 3417 transitions. [2024-11-22 04:06:41,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3417 transitions. [2024-11-22 04:06:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:41,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:41,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:41,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:06:41,697 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:41,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:41,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1623879024, now seen corresponding path program 1 times [2024-11-22 04:06:41,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:41,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455452438] [2024-11-22 04:06:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:41,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:41,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:41,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455452438] [2024-11-22 04:06:41,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455452438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:41,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:41,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572440434] [2024-11-22 04:06:41,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:41,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:41,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:41,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:41,792 INFO L87 Difference]: Start difference. First operand 2576 states and 3417 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:42,278 INFO L93 Difference]: Finished difference Result 3811 states and 5384 transitions. [2024-11-22 04:06:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:42,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:42,291 INFO L225 Difference]: With dead ends: 3811 [2024-11-22 04:06:42,291 INFO L226 Difference]: Without dead ends: 2691 [2024-11-22 04:06:42,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:42,294 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1026 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:42,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 1285 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-22 04:06:42,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2576. [2024-11-22 04:06:42,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2576 states, 2190 states have (on average 1.3310502283105023) internal successors, (2915), 2206 states have internal predecessors, (2915), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (286), 229 states have call predecessors, (286), 212 states have call successors, (286) [2024-11-22 04:06:42,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3414 transitions. [2024-11-22 04:06:42,460 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3414 transitions. Word has length 178 [2024-11-22 04:06:42,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:42,461 INFO L471 AbstractCegarLoop]: Abstraction has 2576 states and 3414 transitions. [2024-11-22 04:06:42,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3414 transitions. [2024-11-22 04:06:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:42,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:42,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:42,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:06:42,464 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:42,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1224507406, now seen corresponding path program 1 times [2024-11-22 04:06:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6039320] [2024-11-22 04:06:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:42,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6039320] [2024-11-22 04:06:42,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6039320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:42,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:42,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:42,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038801039] [2024-11-22 04:06:42,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:42,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:42,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:42,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:42,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:42,585 INFO L87 Difference]: Start difference. First operand 2576 states and 3414 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:43,417 INFO L93 Difference]: Finished difference Result 4598 states and 6610 transitions. [2024-11-22 04:06:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:43,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:43,430 INFO L225 Difference]: With dead ends: 4598 [2024-11-22 04:06:43,430 INFO L226 Difference]: Without dead ends: 3478 [2024-11-22 04:06:43,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:43,433 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 1312 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:43,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 3428 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:43,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2024-11-22 04:06:43,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3339. [2024-11-22 04:06:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 2895 states have (on average 1.3858376511226251) internal successors, (4012), 2915 states have internal predecessors, (4012), 255 states have call successors, (255), 154 states have call predecessors, (255), 187 states have return successors, (340), 273 states have call predecessors, (340), 254 states have call successors, (340) [2024-11-22 04:06:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4607 transitions. [2024-11-22 04:06:43,626 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4607 transitions. Word has length 178 [2024-11-22 04:06:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:43,626 INFO L471 AbstractCegarLoop]: Abstraction has 3339 states and 4607 transitions. [2024-11-22 04:06:43,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4607 transitions. [2024-11-22 04:06:43,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:43,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:43,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:43,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 04:06:43,629 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:43,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:43,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2147292464, now seen corresponding path program 1 times [2024-11-22 04:06:43,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:43,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908448896] [2024-11-22 04:06:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:43,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:43,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:43,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908448896] [2024-11-22 04:06:43,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908448896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:43,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:43,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:43,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998101773] [2024-11-22 04:06:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:43,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:43,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:43,718 INFO L87 Difference]: Start difference. First operand 3339 states and 4607 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:44,198 INFO L93 Difference]: Finished difference Result 5453 states and 7994 transitions. [2024-11-22 04:06:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:44,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:44,211 INFO L225 Difference]: With dead ends: 5453 [2024-11-22 04:06:44,211 INFO L226 Difference]: Without dead ends: 3570 [2024-11-22 04:06:44,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:44,214 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 979 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:44,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1361 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:44,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2024-11-22 04:06:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3339. [2024-11-22 04:06:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 2895 states have (on average 1.3841105354058723) internal successors, (4007), 2915 states have internal predecessors, (4007), 255 states have call successors, (255), 154 states have call predecessors, (255), 187 states have return successors, (340), 273 states have call predecessors, (340), 254 states have call successors, (340) [2024-11-22 04:06:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4602 transitions. [2024-11-22 04:06:44,444 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4602 transitions. Word has length 178 [2024-11-22 04:06:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:44,445 INFO L471 AbstractCegarLoop]: Abstraction has 3339 states and 4602 transitions. [2024-11-22 04:06:44,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4602 transitions. [2024-11-22 04:06:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:44,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:44,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:44,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 04:06:44,448 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:44,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1761812430, now seen corresponding path program 1 times [2024-11-22 04:06:44,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:44,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469722972] [2024-11-22 04:06:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:44,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:44,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469722972] [2024-11-22 04:06:44,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469722972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:44,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:44,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:44,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516732275] [2024-11-22 04:06:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:44,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:44,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:44,545 INFO L87 Difference]: Start difference. First operand 3339 states and 4602 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:45,410 INFO L93 Difference]: Finished difference Result 7031 states and 10466 transitions. [2024-11-22 04:06:45,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:45,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:45,428 INFO L225 Difference]: With dead ends: 7031 [2024-11-22 04:06:45,428 INFO L226 Difference]: Without dead ends: 5148 [2024-11-22 04:06:45,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:45,433 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 1299 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:45,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 3397 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:45,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2024-11-22 04:06:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 4979. [2024-11-22 04:06:45,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4413 states have (on average 1.451393609789259) internal successors, (6405), 4447 states have internal predecessors, (6405), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-22 04:06:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 7216 transitions. [2024-11-22 04:06:45,692 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 7216 transitions. Word has length 178 [2024-11-22 04:06:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:45,692 INFO L471 AbstractCegarLoop]: Abstraction has 4979 states and 7216 transitions. [2024-11-22 04:06:45,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:45,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 7216 transitions. [2024-11-22 04:06:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:45,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:45,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:45,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 04:06:45,695 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:45,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:45,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2026459920, now seen corresponding path program 1 times [2024-11-22 04:06:45,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:45,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853364780] [2024-11-22 04:06:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:45,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:45,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:45,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853364780] [2024-11-22 04:06:45,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853364780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:45,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:45,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:45,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890576736] [2024-11-22 04:06:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:45,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:45,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:45,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:45,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:45,774 INFO L87 Difference]: Start difference. First operand 4979 states and 7216 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:46,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:46,397 INFO L93 Difference]: Finished difference Result 9053 states and 13854 transitions. [2024-11-22 04:06:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:46,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:46,412 INFO L225 Difference]: With dead ends: 9053 [2024-11-22 04:06:46,412 INFO L226 Difference]: Without dead ends: 5530 [2024-11-22 04:06:46,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:46,417 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 975 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:46,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 1347 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:46,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2024-11-22 04:06:46,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4979. [2024-11-22 04:06:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4413 states have (on average 1.4493541808293677) internal successors, (6396), 4447 states have internal predecessors, (6396), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-22 04:06:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 7207 transitions. [2024-11-22 04:06:46,688 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 7207 transitions. Word has length 178 [2024-11-22 04:06:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:46,688 INFO L471 AbstractCegarLoop]: Abstraction has 4979 states and 7207 transitions. [2024-11-22 04:06:46,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 7207 transitions. [2024-11-22 04:06:46,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:46,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:46,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:46,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 04:06:46,691 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:46,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:46,691 INFO L85 PathProgramCache]: Analyzing trace with hash -95334286, now seen corresponding path program 1 times [2024-11-22 04:06:46,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:46,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865677254] [2024-11-22 04:06:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:46,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:46,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865677254] [2024-11-22 04:06:46,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865677254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:46,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:46,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:46,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381784152] [2024-11-22 04:06:46,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:46,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:46,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:46,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:46,781 INFO L87 Difference]: Start difference. First operand 4979 states and 7207 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:47,344 INFO L93 Difference]: Finished difference Result 8995 states and 13720 transitions. [2024-11-22 04:06:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:47,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:47,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:47,360 INFO L225 Difference]: With dead ends: 8995 [2024-11-22 04:06:47,360 INFO L226 Difference]: Without dead ends: 5472 [2024-11-22 04:06:47,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:47,366 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 971 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:47,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1333 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2024-11-22 04:06:47,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 4979. [2024-11-22 04:06:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4413 states have (on average 1.4473147518694764) internal successors, (6387), 4447 states have internal predecessors, (6387), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-22 04:06:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 7198 transitions. [2024-11-22 04:06:47,652 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 7198 transitions. Word has length 178 [2024-11-22 04:06:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:47,652 INFO L471 AbstractCegarLoop]: Abstraction has 4979 states and 7198 transitions. [2024-11-22 04:06:47,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 7198 transitions. [2024-11-22 04:06:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:47,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:47,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:47,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 04:06:47,655 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:47,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1801645172, now seen corresponding path program 1 times [2024-11-22 04:06:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:47,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42290293] [2024-11-22 04:06:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:47,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:47,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:47,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42290293] [2024-11-22 04:06:47,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42290293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:47,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:47,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:47,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380372009] [2024-11-22 04:06:47,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:47,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:47,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:47,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:47,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:47,793 INFO L87 Difference]: Start difference. First operand 4979 states and 7198 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:48,386 INFO L93 Difference]: Finished difference Result 8966 states and 13644 transitions. [2024-11-22 04:06:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:48,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:48,402 INFO L225 Difference]: With dead ends: 8966 [2024-11-22 04:06:48,402 INFO L226 Difference]: Without dead ends: 5443 [2024-11-22 04:06:48,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:48,408 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 968 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:48,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1325 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5443 states. [2024-11-22 04:06:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5443 to 4979. [2024-11-22 04:06:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4979 states, 4413 states have (on average 1.4452753229095854) internal successors, (6378), 4447 states have internal predecessors, (6378), 339 states have call successors, (339), 178 states have call predecessors, (339), 225 states have return successors, (472), 361 states have call predecessors, (472), 338 states have call successors, (472) [2024-11-22 04:06:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4979 states to 4979 states and 7189 transitions. [2024-11-22 04:06:48,714 INFO L78 Accepts]: Start accepts. Automaton has 4979 states and 7189 transitions. Word has length 178 [2024-11-22 04:06:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:48,714 INFO L471 AbstractCegarLoop]: Abstraction has 4979 states and 7189 transitions. [2024-11-22 04:06:48,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4979 states and 7189 transitions. [2024-11-22 04:06:48,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:48,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:48,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:48,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 04:06:48,717 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:48,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:48,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2139932722, now seen corresponding path program 1 times [2024-11-22 04:06:48,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:48,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928061181] [2024-11-22 04:06:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:48,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:48,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928061181] [2024-11-22 04:06:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928061181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:48,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:48,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529789857] [2024-11-22 04:06:48,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:48,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:48,823 INFO L87 Difference]: Start difference. First operand 4979 states and 7189 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:49,792 INFO L93 Difference]: Finished difference Result 12201 states and 18765 transitions. [2024-11-22 04:06:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:49,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:49,819 INFO L225 Difference]: With dead ends: 12201 [2024-11-22 04:06:49,819 INFO L226 Difference]: Without dead ends: 8678 [2024-11-22 04:06:49,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:49,828 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 1303 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:49,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 2399 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:06:49,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8678 states. [2024-11-22 04:06:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8678 to 8484. [2024-11-22 04:06:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8484 states, 7656 states have (on average 1.5075757575757576) internal successors, (11542), 7736 states have internal predecessors, (11542), 507 states have call successors, (507), 226 states have call predecessors, (507), 319 states have return successors, (832), 537 states have call predecessors, (832), 506 states have call successors, (832) [2024-11-22 04:06:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8484 states to 8484 states and 12881 transitions. [2024-11-22 04:06:50,318 INFO L78 Accepts]: Start accepts. Automaton has 8484 states and 12881 transitions. Word has length 178 [2024-11-22 04:06:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:50,318 INFO L471 AbstractCegarLoop]: Abstraction has 8484 states and 12881 transitions. [2024-11-22 04:06:50,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:50,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8484 states and 12881 transitions. [2024-11-22 04:06:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:50,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:50,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:50,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 04:06:50,323 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:50,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1728480076, now seen corresponding path program 1 times [2024-11-22 04:06:50,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:50,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249238189] [2024-11-22 04:06:50,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:50,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:50,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:50,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:50,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249238189] [2024-11-22 04:06:50,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249238189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:50,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:50,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:06:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420652931] [2024-11-22 04:06:50,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:50,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:50,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:50,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:50,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:06:50,403 INFO L87 Difference]: Start difference. First operand 8484 states and 12881 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:51,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:51,277 INFO L93 Difference]: Finished difference Result 16674 states and 26452 transitions. [2024-11-22 04:06:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:06:51,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:51,305 INFO L225 Difference]: With dead ends: 16674 [2024-11-22 04:06:51,306 INFO L226 Difference]: Without dead ends: 9646 [2024-11-22 04:06:51,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:51,316 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 962 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:51,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1309 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:06:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9646 states. [2024-11-22 04:06:51,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9646 to 8484. [2024-11-22 04:06:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8484 states, 7656 states have (on average 1.505355276907001) internal successors, (11525), 7736 states have internal predecessors, (11525), 507 states have call successors, (507), 226 states have call predecessors, (507), 319 states have return successors, (832), 537 states have call predecessors, (832), 506 states have call successors, (832) [2024-11-22 04:06:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8484 states to 8484 states and 12864 transitions. [2024-11-22 04:06:51,800 INFO L78 Accepts]: Start accepts. Automaton has 8484 states and 12864 transitions. Word has length 178 [2024-11-22 04:06:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:51,800 INFO L471 AbstractCegarLoop]: Abstraction has 8484 states and 12864 transitions. [2024-11-22 04:06:51,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 8484 states and 12864 transitions. [2024-11-22 04:06:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:51,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:51,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:51,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 04:06:51,804 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:51,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2026057714, now seen corresponding path program 1 times [2024-11-22 04:06:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:51,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085646150] [2024-11-22 04:06:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:51,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:51,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:51,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085646150] [2024-11-22 04:06:51,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085646150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:51,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:51,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:51,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000904144] [2024-11-22 04:06:51,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:51,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:51,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:51,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:51,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:51,897 INFO L87 Difference]: Start difference. First operand 8484 states and 12864 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:53,345 INFO L93 Difference]: Finished difference Result 24742 states and 39481 transitions. [2024-11-22 04:06:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:53,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:53,391 INFO L225 Difference]: With dead ends: 24742 [2024-11-22 04:06:53,391 INFO L226 Difference]: Without dead ends: 17714 [2024-11-22 04:06:53,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:53,407 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 1597 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:53,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3266 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:06:53,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17714 states. [2024-11-22 04:06:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17714 to 16014. [2024-11-22 04:06:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16014 states, 14624 states have (on average 1.5592861050328228) internal successors, (22803), 14850 states have internal predecessors, (22803), 827 states have call successors, (827), 322 states have call predecessors, (827), 561 states have return successors, (1920), 873 states have call predecessors, (1920), 826 states have call successors, (1920) [2024-11-22 04:06:54,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16014 states to 16014 states and 25550 transitions. [2024-11-22 04:06:54,278 INFO L78 Accepts]: Start accepts. Automaton has 16014 states and 25550 transitions. Word has length 178 [2024-11-22 04:06:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:54,279 INFO L471 AbstractCegarLoop]: Abstraction has 16014 states and 25550 transitions. [2024-11-22 04:06:54,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:54,279 INFO L276 IsEmpty]: Start isEmpty. Operand 16014 states and 25550 transitions. [2024-11-22 04:06:54,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:54,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:54,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:54,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 04:06:54,284 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:54,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1870077172, now seen corresponding path program 1 times [2024-11-22 04:06:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:54,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791129319] [2024-11-22 04:06:54,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:54,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:54,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791129319] [2024-11-22 04:06:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791129319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154027916] [2024-11-22 04:06:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:54,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:54,375 INFO L87 Difference]: Start difference. First operand 16014 states and 25550 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:56,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:56,623 INFO L93 Difference]: Finished difference Result 50472 states and 84357 transitions. [2024-11-22 04:06:56,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:06:56,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:06:56,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:56,732 INFO L225 Difference]: With dead ends: 50472 [2024-11-22 04:06:56,732 INFO L226 Difference]: Without dead ends: 35914 [2024-11-22 04:06:56,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:56,770 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 1352 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:56,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 3258 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:06:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35914 states. [2024-11-22 04:06:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35914 to 32969. [2024-11-22 04:06:58,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32969 states, 30309 states have (on average 1.60609060015177) internal successors, (48679), 30989 states have internal predecessors, (48679), 1451 states have call successors, (1451), 514 states have call predecessors, (1451), 1207 states have return successors, (5616), 1529 states have call predecessors, (5616), 1450 states have call successors, (5616) [2024-11-22 04:06:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32969 states to 32969 states and 55746 transitions. [2024-11-22 04:06:58,754 INFO L78 Accepts]: Start accepts. Automaton has 32969 states and 55746 transitions. Word has length 178 [2024-11-22 04:06:58,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:58,754 INFO L471 AbstractCegarLoop]: Abstraction has 32969 states and 55746 transitions. [2024-11-22 04:06:58,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:06:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 32969 states and 55746 transitions. [2024-11-22 04:06:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:06:58,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:58,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:06:58,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 04:06:58,763 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:58,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:58,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2014279758, now seen corresponding path program 1 times [2024-11-22 04:06:58,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:58,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577513206] [2024-11-22 04:06:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:58,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:06:58,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:58,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577513206] [2024-11-22 04:06:58,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577513206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:58,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:06:58,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:06:58,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980831164] [2024-11-22 04:06:58,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:58,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:06:58,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:58,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:06:58,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:58,909 INFO L87 Difference]: Start difference. First operand 32969 states and 55746 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:03,792 INFO L93 Difference]: Finished difference Result 108709 states and 193495 transitions. [2024-11-22 04:07:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:07:03,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:04,130 INFO L225 Difference]: With dead ends: 108709 [2024-11-22 04:07:04,130 INFO L226 Difference]: Without dead ends: 77196 [2024-11-22 04:07:04,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:04,203 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 1528 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:04,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 3246 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:07:04,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77196 states. [2024-11-22 04:07:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77196 to 71886. [2024-11-22 04:07:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71886 states, 66232 states have (on average 1.6469833313202078) internal successors, (109083), 68306 states have internal predecessors, (109083), 2667 states have call successors, (2667), 898 states have call predecessors, (2667), 2985 states have return successors, (19120), 2809 states have call predecessors, (19120), 2666 states have call successors, (19120) [2024-11-22 04:07:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71886 states to 71886 states and 130870 transitions. [2024-11-22 04:07:09,492 INFO L78 Accepts]: Start accepts. Automaton has 71886 states and 130870 transitions. Word has length 178 [2024-11-22 04:07:09,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:09,493 INFO L471 AbstractCegarLoop]: Abstraction has 71886 states and 130870 transitions. [2024-11-22 04:07:09,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:09,493 INFO L276 IsEmpty]: Start isEmpty. Operand 71886 states and 130870 transitions. [2024-11-22 04:07:09,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 04:07:09,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:09,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:07:09,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 04:07:09,507 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:09,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:09,508 INFO L85 PathProgramCache]: Analyzing trace with hash 492817716, now seen corresponding path program 1 times [2024-11-22 04:07:09,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:09,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904918537] [2024-11-22 04:07:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:09,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904918537] [2024-11-22 04:07:09,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904918537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:09,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969776933] [2024-11-22 04:07:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:09,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:09,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:09,603 INFO L87 Difference]: Start difference. First operand 71886 states and 130870 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:07:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:20,030 INFO L93 Difference]: Finished difference Result 240126 states and 467377 transitions. [2024-11-22 04:07:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:20,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-22 04:07:20,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:20,902 INFO L225 Difference]: With dead ends: 240126 [2024-11-22 04:07:20,903 INFO L226 Difference]: Without dead ends: 169696 [2024-11-22 04:07:21,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:07:21,046 INFO L432 NwaCegarLoop]: 794 mSDtfsCounter, 1309 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:21,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3220 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 04:07:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169696 states.