./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:02:52,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:02:52,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 03:02:52,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:02:52,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:02:52,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:02:52,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:02:52,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:02:52,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:02:52,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:02:52,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:02:52,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:02:52,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:02:52,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:02:52,271 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:02:52,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:02:52,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:02:52,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 03:02:52,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:02:52,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 03:02:52,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:02:52,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:02:52,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:02:52,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:02:52,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:02:52,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 03:02:52,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:02:52,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:02:52,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:02:52,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:02:52,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:02:52,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:02:52,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:52,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:02:52,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:02:52,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:02:52,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:02:52,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:02:52,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:02:52,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:02:52,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:02:52,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:02:52,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cb37d56f61ec273f723a733aad4526e011a3841f34b26767a03fdc541dd1ee3 [2024-10-24 03:02:52,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:02:52,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:02:52,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:02:52,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:02:52,494 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:02:52,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-10-24 03:02:53,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:02:54,125 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:02:54,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-10-24 03:02:54,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe615875/34eb238ae56c4607aee026129486b76d/FLAGbfd864a87 [2024-10-24 03:02:54,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbe615875/34eb238ae56c4607aee026129486b76d [2024-10-24 03:02:54,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:02:54,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:02:54,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:54,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:02:54,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:02:54,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b905a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54, skipping insertion in model container [2024-10-24 03:02:54,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:02:54,340 WARN L248 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.09.cil-1.c[914,927] [2024-10-24 03:02:54,395 WARN L248 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.09.cil-1.c[7115,7128] [2024-10-24 03:02:54,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:54,525 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:02:54,534 WARN L248 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.09.cil-1.c[914,927] [2024-10-24 03:02:54,554 WARN L248 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.09.cil-1.c[7115,7128] [2024-10-24 03:02:54,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:54,635 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:02:54,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54 WrapperNode [2024-10-24 03:02:54,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:54,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:54,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:02:54,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:02:54,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,718 INFO L138 Inliner]: procedures = 71, calls = 84, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 888 [2024-10-24 03:02:54,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:54,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:02:54,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:02:54,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:02:54,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,744 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,761 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]. [2024-10-24 03:02:54,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:02:54,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:02:54,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:02:54,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:02:54,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (1/1) ... [2024-10-24 03:02:54,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:54,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 03:02:54,824 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 [2024-10-24 03:02:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:02:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 03:02:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 03:02:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-10-24 03:02:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-10-24 03:02:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-24 03:02:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-24 03:02:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-24 03:02:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-24 03:02:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-10-24 03:02:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-10-24 03:02:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-24 03:02:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-24 03:02:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-24 03:02:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-24 03:02:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-10-24 03:02:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-10-24 03:02:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-10-24 03:02:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-10-24 03:02:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-10-24 03:02:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-10-24 03:02:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-24 03:02:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-24 03:02:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:02:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-24 03:02:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-24 03:02:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-10-24 03:02:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-10-24 03:02:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:02:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:02:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-24 03:02:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-24 03:02:54,995 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:02:54,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:02:55,696 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-10-24 03:02:55,696 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:02:55,852 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:02:55,859 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-24 03:02:55,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:55 BoogieIcfgContainer [2024-10-24 03:02:55,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:02:55,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:02:55,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:02:55,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:02:55,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:02:54" (1/3) ... [2024-10-24 03:02:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:55, skipping insertion in model container [2024-10-24 03:02:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:54" (2/3) ... [2024-10-24 03:02:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:55, skipping insertion in model container [2024-10-24 03:02:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:55" (3/3) ... [2024-10-24 03:02:55,874 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.09.cil-1.c [2024-10-24 03:02:55,889 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:02:55,889 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 03:02:55,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:02:56,000 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;@32d6cd2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:02:56,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 03:02:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 370 states, 316 states have (on average 1.7025316455696202) internal successors, (538), 322 states have internal predecessors, (538), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-24 03:02:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:56,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:56,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:56,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:56,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1732900895, now seen corresponding path program 1 times [2024-10-24 03:02:56,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:56,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149940550] [2024-10-24 03:02:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:56,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:56,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149940550] [2024-10-24 03:02:56,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149940550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:56,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:56,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:56,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179208952] [2024-10-24 03:02:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:56,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:56,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:56,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:56,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:56,552 INFO L87 Difference]: Start difference. First operand has 370 states, 316 states have (on average 1.7025316455696202) internal successors, (538), 322 states have internal predecessors, (538), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:57,632 INFO L93 Difference]: Finished difference Result 843 states and 1381 transitions. [2024-10-24 03:02:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:02:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:57,649 INFO L225 Difference]: With dead ends: 843 [2024-10-24 03:02:57,649 INFO L226 Difference]: Without dead ends: 490 [2024-10-24 03:02:57,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:02:57,657 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 983 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:57,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1469 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:02:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-10-24 03:02:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 453. [2024-10-24 03:02:57,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 381 states have (on average 1.5643044619422573) internal successors, (596), 387 states have internal predecessors, (596), 48 states have call successors, (48), 21 states have call predecessors, (48), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-10-24 03:02:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 695 transitions. [2024-10-24 03:02:57,727 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 695 transitions. Word has length 58 [2024-10-24 03:02:57,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:57,727 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 695 transitions. [2024-10-24 03:02:57,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:57,728 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 695 transitions. [2024-10-24 03:02:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:57,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:57,730 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] [2024-10-24 03:02:57,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:02:57,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:57,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash 641738848, now seen corresponding path program 1 times [2024-10-24 03:02:57,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:57,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677037208] [2024-10-24 03:02:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:57,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:57,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:57,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677037208] [2024-10-24 03:02:57,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677037208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:57,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:57,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:57,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92247408] [2024-10-24 03:02:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:57,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:57,905 INFO L87 Difference]: Start difference. First operand 453 states and 695 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:59,126 INFO L93 Difference]: Finished difference Result 773 states and 1145 transitions. [2024-10-24 03:02:59,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:02:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:59,135 INFO L225 Difference]: With dead ends: 773 [2024-10-24 03:02:59,135 INFO L226 Difference]: Without dead ends: 611 [2024-10-24 03:02:59,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:02:59,138 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1133 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:59,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1693 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:02:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-10-24 03:02:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 541. [2024-10-24 03:02:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 457 states have internal predecessors, (692), 59 states have call successors, (59), 28 states have call predecessors, (59), 31 states have return successors, (70), 59 states have call predecessors, (70), 57 states have call successors, (70) [2024-10-24 03:02:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 821 transitions. [2024-10-24 03:02:59,214 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 821 transitions. Word has length 58 [2024-10-24 03:02:59,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:59,214 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 821 transitions. [2024-10-24 03:02:59,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 821 transitions. [2024-10-24 03:02:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:59,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:59,216 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] [2024-10-24 03:02:59,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:02:59,216 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:59,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:59,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1724955746, now seen corresponding path program 1 times [2024-10-24 03:02:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:59,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805572122] [2024-10-24 03:02:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:59,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:59,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805572122] [2024-10-24 03:02:59,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805572122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:59,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:59,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:59,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040813883] [2024-10-24 03:02:59,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:59,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:59,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:59,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:59,414 INFO L87 Difference]: Start difference. First operand 541 states and 821 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:00,559 INFO L93 Difference]: Finished difference Result 815 states and 1207 transitions. [2024-10-24 03:03:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:00,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-24 03:03:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:00,569 INFO L225 Difference]: With dead ends: 815 [2024-10-24 03:03:00,573 INFO L226 Difference]: Without dead ends: 571 [2024-10-24 03:03:00,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:03:00,575 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 496 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:00,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 2009 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-10-24 03:03:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 545. [2024-10-24 03:03:00,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 452 states have (on average 1.5331858407079646) internal successors, (693), 460 states have internal predecessors, (693), 59 states have call successors, (59), 28 states have call predecessors, (59), 32 states have return successors, (71), 60 states have call predecessors, (71), 57 states have call successors, (71) [2024-10-24 03:03:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 823 transitions. [2024-10-24 03:03:00,659 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 823 transitions. Word has length 58 [2024-10-24 03:03:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:00,660 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 823 transitions. [2024-10-24 03:03:00,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 823 transitions. [2024-10-24 03:03:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:03:00,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:00,661 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] [2024-10-24 03:03:00,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:03:00,661 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:00,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash 326028252, now seen corresponding path program 1 times [2024-10-24 03:03:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:00,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045399938] [2024-10-24 03:03:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:00,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:00,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:00,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045399938] [2024-10-24 03:03:00,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045399938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:00,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:03:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924798308] [2024-10-24 03:03:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:00,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:03:00,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:00,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:03:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:00,752 INFO L87 Difference]: Start difference. First operand 545 states and 823 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:01,762 INFO L93 Difference]: Finished difference Result 833 states and 1225 transitions. [2024-10-24 03:03:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:03:01,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-24 03:03:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:01,768 INFO L225 Difference]: With dead ends: 833 [2024-10-24 03:03:01,768 INFO L226 Difference]: Without dead ends: 585 [2024-10-24 03:03:01,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:01,772 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 745 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:01,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1783 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:03:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-10-24 03:03:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 557. [2024-10-24 03:03:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 461 states have (on average 1.5227765726681128) internal successors, (702), 469 states have internal predecessors, (702), 59 states have call successors, (59), 28 states have call predecessors, (59), 35 states have return successors, (74), 63 states have call predecessors, (74), 57 states have call successors, (74) [2024-10-24 03:03:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 835 transitions. [2024-10-24 03:03:01,800 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 835 transitions. Word has length 58 [2024-10-24 03:03:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:01,802 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 835 transitions. [2024-10-24 03:03:01,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 835 transitions. [2024-10-24 03:03:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:03:01,803 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:01,803 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] [2024-10-24 03:03:01,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:03:01,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:01,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash 388067866, now seen corresponding path program 1 times [2024-10-24 03:03:01,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914535252] [2024-10-24 03:03:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:01,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:01,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:01,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914535252] [2024-10-24 03:03:01,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914535252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:01,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:01,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:03:01,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55752266] [2024-10-24 03:03:01,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:01,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:03:01,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:01,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:03:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:03:01,997 INFO L87 Difference]: Start difference. First operand 557 states and 835 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:03:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:03,218 INFO L93 Difference]: Finished difference Result 913 states and 1310 transitions. [2024-10-24 03:03:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:03:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:03:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:03,222 INFO L225 Difference]: With dead ends: 913 [2024-10-24 03:03:03,222 INFO L226 Difference]: Without dead ends: 655 [2024-10-24 03:03:03,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:03:03,223 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 1120 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:03,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1493 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-10-24 03:03:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 567. [2024-10-24 03:03:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 469 states have (on average 1.5138592750533049) internal successors, (710), 477 states have internal predecessors, (710), 60 states have call successors, (60), 29 states have call predecessors, (60), 36 states have return successors, (73), 64 states have call predecessors, (73), 58 states have call successors, (73) [2024-10-24 03:03:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 843 transitions. [2024-10-24 03:03:03,273 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 843 transitions. Word has length 58 [2024-10-24 03:03:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:03,273 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 843 transitions. [2024-10-24 03:03:03,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:03:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 843 transitions. [2024-10-24 03:03:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:03:03,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:03,278 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] [2024-10-24 03:03:03,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:03:03,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:03,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:03,279 INFO L85 PathProgramCache]: Analyzing trace with hash 810769692, now seen corresponding path program 1 times [2024-10-24 03:03:03,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:03,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734274405] [2024-10-24 03:03:03,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:03,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:03,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:03,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734274405] [2024-10-24 03:03:03,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734274405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:03,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:03,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:03,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759946947] [2024-10-24 03:03:03,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:03,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:03,425 INFO L87 Difference]: Start difference. First operand 567 states and 843 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:03:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:04,143 INFO L93 Difference]: Finished difference Result 1149 states and 1630 transitions. [2024-10-24 03:03:04,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:03:04,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:03:04,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:04,148 INFO L225 Difference]: With dead ends: 1149 [2024-10-24 03:03:04,148 INFO L226 Difference]: Without dead ends: 882 [2024-10-24 03:03:04,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:03:04,150 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 1379 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:04,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 998 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:03:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-10-24 03:03:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 828. [2024-10-24 03:03:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 664 states have (on average 1.4578313253012047) internal successors, (968), 679 states have internal predecessors, (968), 95 states have call successors, (95), 51 states have call predecessors, (95), 67 states have return successors, (130), 104 states have call predecessors, (130), 93 states have call successors, (130) [2024-10-24 03:03:04,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1193 transitions. [2024-10-24 03:03:04,199 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1193 transitions. Word has length 58 [2024-10-24 03:03:04,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:04,199 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1193 transitions. [2024-10-24 03:03:04,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:03:04,200 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1193 transitions. [2024-10-24 03:03:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:03:04,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:04,201 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] [2024-10-24 03:03:04,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:03:04,202 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:04,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 772988597, now seen corresponding path program 1 times [2024-10-24 03:03:04,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:04,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899486368] [2024-10-24 03:03:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:04,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:04,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:04,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899486368] [2024-10-24 03:03:04,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899486368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:04,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:04,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031725432] [2024-10-24 03:03:04,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:04,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:04,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:04,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:04,266 INFO L87 Difference]: Start difference. First operand 828 states and 1193 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:04,891 INFO L93 Difference]: Finished difference Result 1912 states and 2639 transitions. [2024-10-24 03:03:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 03:03:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2024-10-24 03:03:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:04,897 INFO L225 Difference]: With dead ends: 1912 [2024-10-24 03:03:04,898 INFO L226 Difference]: Without dead ends: 1393 [2024-10-24 03:03:04,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:04,899 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 1379 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:04,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 798 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:03:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-10-24 03:03:04,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1239. [2024-10-24 03:03:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 975 states have (on average 1.403076923076923) internal successors, (1368), 997 states have internal predecessors, (1368), 144 states have call successors, (144), 93 states have call predecessors, (144), 118 states have return successors, (200), 155 states have call predecessors, (200), 142 states have call successors, (200) [2024-10-24 03:03:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1712 transitions. [2024-10-24 03:03:04,978 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1712 transitions. Word has length 59 [2024-10-24 03:03:04,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:04,979 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1712 transitions. [2024-10-24 03:03:04,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1712 transitions. [2024-10-24 03:03:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:03:04,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:04,981 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] [2024-10-24 03:03:04,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:03:04,981 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:04,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:04,981 INFO L85 PathProgramCache]: Analyzing trace with hash -946681344, now seen corresponding path program 1 times [2024-10-24 03:03:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821002128] [2024-10-24 03:03:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:04,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:05,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:05,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821002128] [2024-10-24 03:03:05,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821002128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:05,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:05,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:05,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153405686] [2024-10-24 03:03:05,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:05,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:05,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:05,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:05,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:05,049 INFO L87 Difference]: Start difference. First operand 1239 states and 1712 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:05,789 INFO L93 Difference]: Finished difference Result 3199 states and 4275 transitions. [2024-10-24 03:03:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:05,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-10-24 03:03:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:05,801 INFO L225 Difference]: With dead ends: 3199 [2024-10-24 03:03:05,801 INFO L226 Difference]: Without dead ends: 2239 [2024-10-24 03:03:05,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:05,804 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 961 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:05,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 973 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:03:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2024-10-24 03:03:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2055. [2024-10-24 03:03:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1593 states have (on average 1.3559322033898304) internal successors, (2160), 1621 states have internal predecessors, (2160), 238 states have call successors, (238), 179 states have call predecessors, (238), 222 states have return successors, (338), 261 states have call predecessors, (338), 236 states have call successors, (338) [2024-10-24 03:03:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2736 transitions. [2024-10-24 03:03:05,938 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2736 transitions. Word has length 60 [2024-10-24 03:03:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:05,938 INFO L471 AbstractCegarLoop]: Abstraction has 2055 states and 2736 transitions. [2024-10-24 03:03:05,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2736 transitions. [2024-10-24 03:03:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 03:03:05,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:05,941 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] [2024-10-24 03:03:05,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:03:05,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:05,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:05,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1237786849, now seen corresponding path program 1 times [2024-10-24 03:03:05,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:05,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449933817] [2024-10-24 03:03:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:05,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:06,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:06,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:06,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:06,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449933817] [2024-10-24 03:03:06,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449933817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:06,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:06,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833279384] [2024-10-24 03:03:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:06,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:06,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:06,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:06,007 INFO L87 Difference]: Start difference. First operand 2055 states and 2736 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:06,719 INFO L93 Difference]: Finished difference Result 4719 states and 6140 transitions. [2024-10-24 03:03:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-10-24 03:03:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:06,731 INFO L225 Difference]: With dead ends: 4719 [2024-10-24 03:03:06,731 INFO L226 Difference]: Without dead ends: 2963 [2024-10-24 03:03:06,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:06,736 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 1087 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:06,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1039 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:03:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2024-10-24 03:03:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2721. [2024-10-24 03:03:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2095 states have (on average 1.3355608591885442) internal successors, (2798), 2131 states have internal predecessors, (2798), 318 states have call successors, (318), 249 states have call predecessors, (318), 306 states have return successors, (447), 347 states have call predecessors, (447), 316 states have call successors, (447) [2024-10-24 03:03:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3563 transitions. [2024-10-24 03:03:06,950 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3563 transitions. Word has length 66 [2024-10-24 03:03:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:06,953 INFO L471 AbstractCegarLoop]: Abstraction has 2721 states and 3563 transitions. [2024-10-24 03:03:06,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:03:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3563 transitions. [2024-10-24 03:03:06,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 03:03:06,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:06,955 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] [2024-10-24 03:03:06,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:03:06,955 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:06,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:06,955 INFO L85 PathProgramCache]: Analyzing trace with hash -233405929, now seen corresponding path program 1 times [2024-10-24 03:03:06,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:06,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193410275] [2024-10-24 03:03:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:06,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:07,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:07,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193410275] [2024-10-24 03:03:07,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193410275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:07,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:07,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:07,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776104295] [2024-10-24 03:03:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:07,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:07,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:07,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:07,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:07,028 INFO L87 Difference]: Start difference. First operand 2721 states and 3563 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:03:07,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:07,833 INFO L93 Difference]: Finished difference Result 3441 states and 4440 transitions. [2024-10-24 03:03:07,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 03:03:07,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 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 67 [2024-10-24 03:03:07,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:07,844 INFO L225 Difference]: With dead ends: 3441 [2024-10-24 03:03:07,845 INFO L226 Difference]: Without dead ends: 3438 [2024-10-24 03:03:07,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:03:07,846 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1642 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:07,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1013 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:03:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2024-10-24 03:03:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3171. [2024-10-24 03:03:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 2436 states have (on average 1.3243021346469623) internal successors, (3226), 2477 states have internal predecessors, (3226), 368 states have call successors, (368), 293 states have call predecessors, (368), 365 states have return successors, (526), 407 states have call predecessors, (526), 367 states have call successors, (526) [2024-10-24 03:03:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 4120 transitions. [2024-10-24 03:03:08,051 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 4120 transitions. Word has length 67 [2024-10-24 03:03:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:08,051 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 4120 transitions. [2024-10-24 03:03:08,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:03:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 4120 transitions. [2024-10-24 03:03:08,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 03:03:08,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:08,053 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] [2024-10-24 03:03:08,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:03:08,053 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:08,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1353127529, now seen corresponding path program 1 times [2024-10-24 03:03:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:08,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572333700] [2024-10-24 03:03:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:08,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:08,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572333700] [2024-10-24 03:03:08,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572333700] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:03:08,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946003564] [2024-10-24 03:03:08,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:08,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:03:08,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:03:08,188 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) [2024-10-24 03:03:08,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:03:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:03:08,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:03:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:08,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:03:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946003564] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:03:08,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:03:08,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-10-24 03:03:08,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952891928] [2024-10-24 03:03:08,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:03:08,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:03:08,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:03:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:03:08,618 INFO L87 Difference]: Start difference. First operand 3171 states and 4120 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:03:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:10,446 INFO L93 Difference]: Finished difference Result 7238 states and 9232 transitions. [2024-10-24 03:03:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 03:03:10,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 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 68 [2024-10-24 03:03:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:10,468 INFO L225 Difference]: With dead ends: 7238 [2024-10-24 03:03:10,469 INFO L226 Difference]: Without dead ends: 7235 [2024-10-24 03:03:10,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-10-24 03:03:10,471 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1587 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:10,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 1843 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:03:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2024-10-24 03:03:10,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 4797. [2024-10-24 03:03:10,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4797 states, 3676 states have (on average 1.3161044613710555) internal successors, (4838), 3739 states have internal predecessors, (4838), 552 states have call successors, (552), 451 states have call predecessors, (552), 567 states have return successors, (804), 613 states have call predecessors, (804), 551 states have call successors, (804) [2024-10-24 03:03:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4797 states to 4797 states and 6194 transitions. [2024-10-24 03:03:10,827 INFO L78 Accepts]: Start accepts. Automaton has 4797 states and 6194 transitions. Word has length 68 [2024-10-24 03:03:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:10,827 INFO L471 AbstractCegarLoop]: Abstraction has 4797 states and 6194 transitions. [2024-10-24 03:03:10,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:03:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4797 states and 6194 transitions. [2024-10-24 03:03:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 03:03:10,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:10,829 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] [2024-10-24 03:03:10,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 03:03:11,030 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 [2024-10-24 03:03:11,031 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:11,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1341145367, now seen corresponding path program 2 times [2024-10-24 03:03:11,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:11,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389145621] [2024-10-24 03:03:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:11,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:11,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389145621] [2024-10-24 03:03:11,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389145621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:11,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:11,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:11,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750518544] [2024-10-24 03:03:11,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:11,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:11,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:11,085 INFO L87 Difference]: Start difference. First operand 4797 states and 6194 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:03:11,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:11,857 INFO L93 Difference]: Finished difference Result 7253 states and 9341 transitions. [2024-10-24 03:03:11,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:03:11,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 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 71 [2024-10-24 03:03:11,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:11,872 INFO L225 Difference]: With dead ends: 7253 [2024-10-24 03:03:11,873 INFO L226 Difference]: Without dead ends: 3550 [2024-10-24 03:03:11,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:03:11,881 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 1260 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:11,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 861 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:03:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2024-10-24 03:03:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3321. [2024-10-24 03:03:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 2556 states have (on average 1.3028169014084507) internal successors, (3330), 2597 states have internal predecessors, (3330), 384 states have call successors, (384), 307 states have call predecessors, (384), 379 states have return successors, (530), 423 states have call predecessors, (530), 383 states have call successors, (530) [2024-10-24 03:03:12,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 4244 transitions. [2024-10-24 03:03:12,285 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 4244 transitions. Word has length 71 [2024-10-24 03:03:12,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:12,286 INFO L471 AbstractCegarLoop]: Abstraction has 3321 states and 4244 transitions. [2024-10-24 03:03:12,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:03:12,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 4244 transitions. [2024-10-24 03:03:12,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 03:03:12,288 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:12,289 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:03:12,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:03:12,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:12,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:12,289 INFO L85 PathProgramCache]: Analyzing trace with hash -721004812, now seen corresponding path program 1 times [2024-10-24 03:03:12,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:12,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196711699] [2024-10-24 03:03:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:12,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:03:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:03:12,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:12,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196711699] [2024-10-24 03:03:12,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196711699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:12,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:12,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:03:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110209910] [2024-10-24 03:03:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:12,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:03:12,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:12,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:03:12,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:03:12,389 INFO L87 Difference]: Start difference. First operand 3321 states and 4244 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:13,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:13,831 INFO L93 Difference]: Finished difference Result 9619 states and 12087 transitions. [2024-10-24 03:03:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 03:03:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-10-24 03:03:13,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:13,882 INFO L225 Difference]: With dead ends: 9619 [2024-10-24 03:03:13,882 INFO L226 Difference]: Without dead ends: 5382 [2024-10-24 03:03:13,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:03:13,889 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 888 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:13,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1806 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:03:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2024-10-24 03:03:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 5062. [2024-10-24 03:03:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5062 states, 3840 states have (on average 1.2705729166666666) internal successors, (4879), 3924 states have internal predecessors, (4879), 588 states have call successors, (588), 481 states have call predecessors, (588), 632 states have return successors, (912), 663 states have call predecessors, (912), 587 states have call successors, (912) [2024-10-24 03:03:14,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 6379 transitions. [2024-10-24 03:03:14,254 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 6379 transitions. Word has length 76 [2024-10-24 03:03:14,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:14,255 INFO L471 AbstractCegarLoop]: Abstraction has 5062 states and 6379 transitions. [2024-10-24 03:03:14,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 6379 transitions. [2024-10-24 03:03:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 03:03:14,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:14,259 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-24 03:03:14,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:03:14,260 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:14,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1232284266, now seen corresponding path program 1 times [2024-10-24 03:03:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:14,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934943814] [2024-10-24 03:03:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 03:03:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:03:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934943814] [2024-10-24 03:03:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934943814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:14,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:14,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:03:14,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920260319] [2024-10-24 03:03:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:14,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:03:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:03:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:14,381 INFO L87 Difference]: Start difference. First operand 5062 states and 6379 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:15,837 INFO L93 Difference]: Finished difference Result 8733 states and 10887 transitions. [2024-10-24 03:03:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 03:03:15,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 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 86 [2024-10-24 03:03:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:15,860 INFO L225 Difference]: With dead ends: 8733 [2024-10-24 03:03:15,861 INFO L226 Difference]: Without dead ends: 4553 [2024-10-24 03:03:15,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-10-24 03:03:15,871 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 2000 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:15,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 1574 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:03:15,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2024-10-24 03:03:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4219. [2024-10-24 03:03:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 3210 states have (on average 1.2644859813084113) internal successors, (4059), 3276 states have internal predecessors, (4059), 489 states have call successors, (489), 396 states have call predecessors, (489), 518 states have return successors, (690), 553 states have call predecessors, (690), 488 states have call successors, (690) [2024-10-24 03:03:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 5238 transitions. [2024-10-24 03:03:16,376 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 5238 transitions. Word has length 86 [2024-10-24 03:03:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:16,376 INFO L471 AbstractCegarLoop]: Abstraction has 4219 states and 5238 transitions. [2024-10-24 03:03:16,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 5238 transitions. [2024-10-24 03:03:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:16,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:16,381 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:16,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:03:16,381 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:16,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1186992252, now seen corresponding path program 1 times [2024-10-24 03:03:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:16,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046504981] [2024-10-24 03:03:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:16,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:03:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 03:03:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 03:03:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 03:03:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 03:03:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:03:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 03:03:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-24 03:03:16,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046504981] [2024-10-24 03:03:16,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046504981] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:03:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572774492] [2024-10-24 03:03:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:16,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:03:16,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:03:16,505 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) [2024-10-24 03:03:16,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:03:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:03:16,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:03:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 03:03:16,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:03:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572774492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:03:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-10-24 03:03:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572999393] [2024-10-24 03:03:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:16,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:16,653 INFO L87 Difference]: Start difference. First operand 4219 states and 5238 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-10-24 03:03:16,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:16,936 INFO L93 Difference]: Finished difference Result 6066 states and 7491 transitions. [2024-10-24 03:03:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:03:16,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 131 [2024-10-24 03:03:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:16,944 INFO L225 Difference]: With dead ends: 6066 [2024-10-24 03:03:16,945 INFO L226 Difference]: Without dead ends: 2150 [2024-10-24 03:03:16,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:16,950 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:16,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2608 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:03:16,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-10-24 03:03:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-10-24 03:03:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1718 states have (on average 1.280558789289872) internal successors, (2200), 1733 states have internal predecessors, (2200), 213 states have call successors, (213), 162 states have call predecessors, (213), 217 states have return successors, (297), 255 states have call predecessors, (297), 212 states have call successors, (297) [2024-10-24 03:03:17,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 2710 transitions. [2024-10-24 03:03:17,080 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 2710 transitions. Word has length 131 [2024-10-24 03:03:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:17,080 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 2710 transitions. [2024-10-24 03:03:17,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-10-24 03:03:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 2710 transitions. [2024-10-24 03:03:17,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 03:03:17,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:17,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:17,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 03:03:17,288 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 [2024-10-24 03:03:17,289 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:17,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:17,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1882460170, now seen corresponding path program 1 times [2024-10-24 03:03:17,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:17,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628814585] [2024-10-24 03:03:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:17,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:03:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 03:03:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 03:03:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 03:03:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 03:03:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 03:03:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 03:03:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-24 03:03:17,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:17,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628814585] [2024-10-24 03:03:17,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628814585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:17,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:17,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:17,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808845495] [2024-10-24 03:03:17,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:17,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:17,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:17,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:17,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:17,354 INFO L87 Difference]: Start difference. First operand 2150 states and 2710 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 03:03:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:17,974 INFO L93 Difference]: Finished difference Result 2215 states and 2778 transitions. [2024-10-24 03:03:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 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 133 [2024-10-24 03:03:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:17,981 INFO L225 Difference]: With dead ends: 2215 [2024-10-24 03:03:17,981 INFO L226 Difference]: Without dead ends: 1813 [2024-10-24 03:03:17,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:03:17,983 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 599 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:17,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1149 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:03:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-10-24 03:03:18,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1751. [2024-10-24 03:03:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1415 states have (on average 1.2982332155477032) internal successors, (1837), 1427 states have internal predecessors, (1837), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (233), 202 states have call predecessors, (233), 166 states have call successors, (233) [2024-10-24 03:03:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2237 transitions. [2024-10-24 03:03:18,089 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2237 transitions. Word has length 133 [2024-10-24 03:03:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:18,090 INFO L471 AbstractCegarLoop]: Abstraction has 1751 states and 2237 transitions. [2024-10-24 03:03:18,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-24 03:03:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2237 transitions. [2024-10-24 03:03:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:18,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:18,092 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] [2024-10-24 03:03:18,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:03:18,093 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:18,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:18,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1909011415, now seen corresponding path program 1 times [2024-10-24 03:03:18,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:18,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12691307] [2024-10-24 03:03:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:18,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:18,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12691307] [2024-10-24 03:03:18,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12691307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:18,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:18,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:03:18,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498736552] [2024-10-24 03:03:18,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:18,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:03:18,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:18,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:03:18,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:03:18,189 INFO L87 Difference]: Start difference. First operand 1751 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:19,559 INFO L93 Difference]: Finished difference Result 2122 states and 2853 transitions. [2024-10-24 03:03:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:19,566 INFO L225 Difference]: With dead ends: 2122 [2024-10-24 03:03:19,566 INFO L226 Difference]: Without dead ends: 1851 [2024-10-24 03:03:19,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:19,567 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 856 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:19,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 703 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:03:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2024-10-24 03:03:19,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1751. [2024-10-24 03:03:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1415 states have (on average 1.2975265017667845) internal successors, (1836), 1427 states have internal predecessors, (1836), 167 states have call successors, (167), 122 states have call predecessors, (167), 167 states have return successors, (233), 202 states have call predecessors, (233), 166 states have call successors, (233) [2024-10-24 03:03:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2236 transitions. [2024-10-24 03:03:19,760 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2236 transitions. Word has length 131 [2024-10-24 03:03:19,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:19,760 INFO L471 AbstractCegarLoop]: Abstraction has 1751 states and 2236 transitions. [2024-10-24 03:03:19,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:19,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2236 transitions. [2024-10-24 03:03:19,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:19,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:19,763 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] [2024-10-24 03:03:19,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:03:19,763 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:19,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1524122279, now seen corresponding path program 1 times [2024-10-24 03:03:19,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:19,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378869002] [2024-10-24 03:03:19,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:19,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:19,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378869002] [2024-10-24 03:03:19,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378869002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:19,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:19,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54144092] [2024-10-24 03:03:19,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:19,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:19,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:19,918 INFO L87 Difference]: Start difference. First operand 1751 states and 2236 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:22,015 INFO L93 Difference]: Finished difference Result 2488 states and 3460 transitions. [2024-10-24 03:03:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:22,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:22,022 INFO L225 Difference]: With dead ends: 2488 [2024-10-24 03:03:22,023 INFO L226 Difference]: Without dead ends: 2226 [2024-10-24 03:03:22,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:22,024 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 1355 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:22,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 1024 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 03:03:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2024-10-24 03:03:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2027. [2024-10-24 03:03:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1666 states have (on average 1.3487394957983194) internal successors, (2247), 1679 states have internal predecessors, (2247), 185 states have call successors, (185), 128 states have call predecessors, (185), 174 states have return successors, (254), 220 states have call predecessors, (254), 184 states have call successors, (254) [2024-10-24 03:03:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2686 transitions. [2024-10-24 03:03:22,321 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2686 transitions. Word has length 131 [2024-10-24 03:03:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:22,321 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 2686 transitions. [2024-10-24 03:03:22,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2686 transitions. [2024-10-24 03:03:22,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:22,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:22,324 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] [2024-10-24 03:03:22,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:03:22,324 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:22,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash -384168533, now seen corresponding path program 1 times [2024-10-24 03:03:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339977718] [2024-10-24 03:03:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:22,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:22,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:22,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339977718] [2024-10-24 03:03:22,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339977718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:22,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:22,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026840740] [2024-10-24 03:03:22,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:22,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:22,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:22,505 INFO L87 Difference]: Start difference. First operand 2027 states and 2686 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:25,349 INFO L93 Difference]: Finished difference Result 3153 states and 4554 transitions. [2024-10-24 03:03:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:25,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:25,357 INFO L225 Difference]: With dead ends: 3153 [2024-10-24 03:03:25,357 INFO L226 Difference]: Without dead ends: 2615 [2024-10-24 03:03:25,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:25,359 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 1453 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:25,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1342 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2024-10-24 03:03:25,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2282. [2024-10-24 03:03:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1896 states have (on average 1.379746835443038) internal successors, (2616), 1910 states have internal predecessors, (2616), 203 states have call successors, (203), 134 states have call predecessors, (203), 181 states have return successors, (274), 239 states have call predecessors, (274), 202 states have call successors, (274) [2024-10-24 03:03:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 3093 transitions. [2024-10-24 03:03:25,623 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 3093 transitions. Word has length 131 [2024-10-24 03:03:25,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:25,623 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 3093 transitions. [2024-10-24 03:03:25,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 3093 transitions. [2024-10-24 03:03:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:25,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:25,626 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] [2024-10-24 03:03:25,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:03:25,627 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:25,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 87187817, now seen corresponding path program 1 times [2024-10-24 03:03:25,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:25,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189866789] [2024-10-24 03:03:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:25,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:25,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189866789] [2024-10-24 03:03:25,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189866789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:25,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:25,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:25,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082845158] [2024-10-24 03:03:25,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:25,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:25,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:25,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:25,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:25,786 INFO L87 Difference]: Start difference. First operand 2282 states and 3093 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:28,261 INFO L93 Difference]: Finished difference Result 4127 states and 6147 transitions. [2024-10-24 03:03:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:28,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:28,271 INFO L225 Difference]: With dead ends: 4127 [2024-10-24 03:03:28,271 INFO L226 Difference]: Without dead ends: 3334 [2024-10-24 03:03:28,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:28,274 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1384 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3135 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:28,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 1815 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3135 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2024-10-24 03:03:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 2793. [2024-10-24 03:03:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4234196011879507) internal successors, (3355), 2373 states have internal predecessors, (3355), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2024-10-24 03:03:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3912 transitions. [2024-10-24 03:03:28,536 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3912 transitions. Word has length 131 [2024-10-24 03:03:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:28,536 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 3912 transitions. [2024-10-24 03:03:28,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:28,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3912 transitions. [2024-10-24 03:03:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:28,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:28,539 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] [2024-10-24 03:03:28,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:03:28,539 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:28,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:28,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1560175125, now seen corresponding path program 1 times [2024-10-24 03:03:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:28,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867383064] [2024-10-24 03:03:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:28,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:28,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867383064] [2024-10-24 03:03:28,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867383064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:28,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:28,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122065745] [2024-10-24 03:03:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:28,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:28,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:28,675 INFO L87 Difference]: Start difference. First operand 2793 states and 3912 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:30,108 INFO L93 Difference]: Finished difference Result 4628 states and 6959 transitions. [2024-10-24 03:03:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:30,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:30,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:30,116 INFO L225 Difference]: With dead ends: 4628 [2024-10-24 03:03:30,117 INFO L226 Difference]: Without dead ends: 3324 [2024-10-24 03:03:30,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:30,119 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1218 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:30,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 868 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2024-10-24 03:03:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 2793. [2024-10-24 03:03:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4212982605006363) internal successors, (3350), 2373 states have internal predecessors, (3350), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2024-10-24 03:03:30,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3907 transitions. [2024-10-24 03:03:30,389 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3907 transitions. Word has length 131 [2024-10-24 03:03:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:30,389 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 3907 transitions. [2024-10-24 03:03:30,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:30,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3907 transitions. [2024-10-24 03:03:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:30,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:30,392 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] [2024-10-24 03:03:30,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:03:30,392 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:30,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:30,392 INFO L85 PathProgramCache]: Analyzing trace with hash 603441449, now seen corresponding path program 1 times [2024-10-24 03:03:30,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:30,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085239249] [2024-10-24 03:03:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:30,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:30,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:30,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085239249] [2024-10-24 03:03:30,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085239249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:30,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:30,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176962427] [2024-10-24 03:03:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:30,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:30,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:30,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:30,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:30,531 INFO L87 Difference]: Start difference. First operand 2793 states and 3907 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:32,131 INFO L93 Difference]: Finished difference Result 4622 states and 6933 transitions. [2024-10-24 03:03:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:32,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:32,143 INFO L225 Difference]: With dead ends: 4622 [2024-10-24 03:03:32,144 INFO L226 Difference]: Without dead ends: 3318 [2024-10-24 03:03:32,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:32,148 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1049 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:32,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1041 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:03:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2024-10-24 03:03:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2793. [2024-10-24 03:03:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.419176919813322) internal successors, (3345), 2373 states have internal predecessors, (3345), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2024-10-24 03:03:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3902 transitions. [2024-10-24 03:03:32,605 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3902 transitions. Word has length 131 [2024-10-24 03:03:32,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:32,605 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 3902 transitions. [2024-10-24 03:03:32,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:32,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3902 transitions. [2024-10-24 03:03:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:32,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:32,608 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] [2024-10-24 03:03:32,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:03:32,608 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:32,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash -435143125, now seen corresponding path program 1 times [2024-10-24 03:03:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:32,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369888018] [2024-10-24 03:03:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:32,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:32,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:32,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369888018] [2024-10-24 03:03:32,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369888018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:32,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:32,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910870211] [2024-10-24 03:03:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:32,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:32,744 INFO L87 Difference]: Start difference. First operand 2793 states and 3902 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:34,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:34,459 INFO L93 Difference]: Finished difference Result 4615 states and 6905 transitions. [2024-10-24 03:03:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:34,473 INFO L225 Difference]: With dead ends: 4615 [2024-10-24 03:03:34,474 INFO L226 Difference]: Without dead ends: 3311 [2024-10-24 03:03:34,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:34,479 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1047 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:34,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1041 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:03:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-10-24 03:03:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 2793. [2024-10-24 03:03:34,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2357 states have (on average 1.4170555791260075) internal successors, (3340), 2373 states have internal predecessors, (3340), 239 states have call successors, (239), 146 states have call predecessors, (239), 195 states have return successors, (318), 277 states have call predecessors, (318), 238 states have call successors, (318) [2024-10-24 03:03:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3897 transitions. [2024-10-24 03:03:34,794 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3897 transitions. Word has length 131 [2024-10-24 03:03:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:34,794 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 3897 transitions. [2024-10-24 03:03:34,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:34,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3897 transitions. [2024-10-24 03:03:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:34,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:34,797 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] [2024-10-24 03:03:34,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:03:34,797 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:34,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:34,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1886658793, now seen corresponding path program 1 times [2024-10-24 03:03:34,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:34,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352274857] [2024-10-24 03:03:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:34,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:34,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352274857] [2024-10-24 03:03:34,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352274857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:34,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:34,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331195835] [2024-10-24 03:03:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:34,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:34,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:34,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:34,959 INFO L87 Difference]: Start difference. First operand 2793 states and 3897 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:37,738 INFO L93 Difference]: Finished difference Result 5971 states and 9074 transitions. [2024-10-24 03:03:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:37,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:37,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:37,751 INFO L225 Difference]: With dead ends: 5971 [2024-10-24 03:03:37,751 INFO L226 Difference]: Without dead ends: 4667 [2024-10-24 03:03:37,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:37,755 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1358 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:37,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1815 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2024-10-24 03:03:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 3828. [2024-10-24 03:03:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3828 states, 3292 states have (on average 1.4644592952612394) internal successors, (4821), 3312 states have internal predecessors, (4821), 311 states have call successors, (311), 170 states have call predecessors, (311), 223 states have return successors, (412), 353 states have call predecessors, (412), 310 states have call successors, (412) [2024-10-24 03:03:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5544 transitions. [2024-10-24 03:03:38,164 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5544 transitions. Word has length 131 [2024-10-24 03:03:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:38,164 INFO L471 AbstractCegarLoop]: Abstraction has 3828 states and 5544 transitions. [2024-10-24 03:03:38,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5544 transitions. [2024-10-24 03:03:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:38,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:38,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:38,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:03:38,168 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:38,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash -255201685, now seen corresponding path program 1 times [2024-10-24 03:03:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388007367] [2024-10-24 03:03:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388007367] [2024-10-24 03:03:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388007367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:38,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274183329] [2024-10-24 03:03:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:38,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:38,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:38,308 INFO L87 Difference]: Start difference. First operand 3828 states and 5544 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:41,316 INFO L93 Difference]: Finished difference Result 9692 states and 15083 transitions. [2024-10-24 03:03:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:41,336 INFO L225 Difference]: With dead ends: 9692 [2024-10-24 03:03:41,336 INFO L226 Difference]: Without dead ends: 7353 [2024-10-24 03:03:41,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:41,343 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1354 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:41,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1815 Invalid, 3118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2024-10-24 03:03:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 5907. [2024-10-24 03:03:41,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5171 states have (on average 1.507832140785148) internal successors, (7797), 5199 states have internal predecessors, (7797), 455 states have call successors, (455), 218 states have call predecessors, (455), 279 states have return successors, (618), 505 states have call predecessors, (618), 454 states have call successors, (618) [2024-10-24 03:03:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 8870 transitions. [2024-10-24 03:03:41,834 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 8870 transitions. Word has length 131 [2024-10-24 03:03:41,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:41,835 INFO L471 AbstractCegarLoop]: Abstraction has 5907 states and 8870 transitions. [2024-10-24 03:03:41,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 8870 transitions. [2024-10-24 03:03:41,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:41,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:41,838 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] [2024-10-24 03:03:41,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:03:41,839 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:41,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash -136760211, now seen corresponding path program 1 times [2024-10-24 03:03:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981696487] [2024-10-24 03:03:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:41,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:41,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:41,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981696487] [2024-10-24 03:03:41,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981696487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:41,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:41,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:41,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81369228] [2024-10-24 03:03:41,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:41,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:41,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:41,980 INFO L87 Difference]: Start difference. First operand 5907 states and 8870 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:45,002 INFO L93 Difference]: Finished difference Result 17147 states and 27183 transitions. [2024-10-24 03:03:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:45,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:45,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:45,032 INFO L225 Difference]: With dead ends: 17147 [2024-10-24 03:03:45,033 INFO L226 Difference]: Without dead ends: 12729 [2024-10-24 03:03:45,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:45,042 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 1436 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 2559 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:45,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 1268 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2559 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 03:03:45,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12729 states. [2024-10-24 03:03:45,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12729 to 10078. [2024-10-24 03:03:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10078 states, 8942 states have (on average 1.5395884589577276) internal successors, (13767), 8986 states have internal predecessors, (13767), 743 states have call successors, (743), 314 states have call predecessors, (743), 391 states have return successors, (1084), 809 states have call predecessors, (1084), 742 states have call successors, (1084) [2024-10-24 03:03:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10078 states to 10078 states and 15594 transitions. [2024-10-24 03:03:45,785 INFO L78 Accepts]: Start accepts. Automaton has 10078 states and 15594 transitions. Word has length 131 [2024-10-24 03:03:45,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:45,785 INFO L471 AbstractCegarLoop]: Abstraction has 10078 states and 15594 transitions. [2024-10-24 03:03:45,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10078 states and 15594 transitions. [2024-10-24 03:03:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:45,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:45,791 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] [2024-10-24 03:03:45,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:03:45,791 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:45,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:45,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1252533803, now seen corresponding path program 1 times [2024-10-24 03:03:45,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:45,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082650205] [2024-10-24 03:03:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:45,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:45,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082650205] [2024-10-24 03:03:45,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082650205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:45,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:45,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025941118] [2024-10-24 03:03:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:45,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:45,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:45,923 INFO L87 Difference]: Start difference. First operand 10078 states and 15594 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:50,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:50,327 INFO L93 Difference]: Finished difference Result 35768 states and 57559 transitions. [2024-10-24 03:03:50,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:50,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:50,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:50,413 INFO L225 Difference]: With dead ends: 35768 [2024-10-24 03:03:50,413 INFO L226 Difference]: Without dead ends: 27179 [2024-10-24 03:03:50,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:50,441 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1435 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 3537 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 3630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:50,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1808 Invalid, 3630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3537 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 03:03:50,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27179 states. [2024-10-24 03:03:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27179 to 18387. [2024-10-24 03:03:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18387 states, 16483 states have (on average 1.5604562276284657) internal successors, (25721), 16559 states have internal predecessors, (25721), 1287 states have call successors, (1287), 506 states have call predecessors, (1287), 615 states have return successors, (2146), 1385 states have call predecessors, (2146), 1286 states have call successors, (2146) [2024-10-24 03:03:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18387 states to 18387 states and 29154 transitions. [2024-10-24 03:03:52,290 INFO L78 Accepts]: Start accepts. Automaton has 18387 states and 29154 transitions. Word has length 131 [2024-10-24 03:03:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:52,291 INFO L471 AbstractCegarLoop]: Abstraction has 18387 states and 29154 transitions. [2024-10-24 03:03:52,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18387 states and 29154 transitions. [2024-10-24 03:03:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:52,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:52,303 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:52,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:03:52,303 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:52,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:52,303 INFO L85 PathProgramCache]: Analyzing trace with hash -780860243, now seen corresponding path program 1 times [2024-10-24 03:03:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9239035] [2024-10-24 03:03:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:03:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:03:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:03:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:03:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:52,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:52,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9239035] [2024-10-24 03:03:52,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9239035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:52,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:52,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:52,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873022201] [2024-10-24 03:03:52,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:52,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:52,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:52,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:52,468 INFO L87 Difference]: Start difference. First operand 18387 states and 29154 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:58,312 INFO L93 Difference]: Finished difference Result 68403 states and 111485 transitions. [2024-10-24 03:03:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:03:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:58,451 INFO L225 Difference]: With dead ends: 68403 [2024-10-24 03:03:58,451 INFO L226 Difference]: Without dead ends: 51505 [2024-10-24 03:03:58,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:58,490 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1644 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:58,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 1804 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 03:03:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51505 states. [2024-10-24 03:04:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51505 to 34684. [2024-10-24 03:04:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34684 states, 31276 states have (on average 1.5724197467706869) internal successors, (49179), 31416 states have internal predecessors, (49179), 2343 states have call successors, (2343), 890 states have call predecessors, (2343), 1063 states have return successors, (4724), 2505 states have call predecessors, (4724), 2342 states have call successors, (4724) [2024-10-24 03:04:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34684 states to 34684 states and 56246 transitions. [2024-10-24 03:04:02,217 INFO L78 Accepts]: Start accepts. Automaton has 34684 states and 56246 transitions. Word has length 131 [2024-10-24 03:04:02,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:04:02,217 INFO L471 AbstractCegarLoop]: Abstraction has 34684 states and 56246 transitions. [2024-10-24 03:04:02,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:04:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 34684 states and 56246 transitions. [2024-10-24 03:04:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:04:02,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:04:02,235 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] [2024-10-24 03:04:02,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:04:02,235 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:04:02,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:04:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1647398379, now seen corresponding path program 1 times [2024-10-24 03:04:02,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:04:02,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360815391] [2024-10-24 03:04:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:04:02,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:04:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:04:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:04:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:04:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:04:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:04:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:04:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:04:02,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360815391] [2024-10-24 03:04:02,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360815391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:04:02,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:04:02,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:04:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468016470] [2024-10-24 03:04:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:04:02,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:04:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:04:02,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:04:02,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:04:02,406 INFO L87 Difference]: Start difference. First operand 34684 states and 56246 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:04:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:04:12,675 INFO L93 Difference]: Finished difference Result 131818 states and 218083 transitions. [2024-10-24 03:04:12,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:04:12,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 131 [2024-10-24 03:04:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:04:12,969 INFO L225 Difference]: With dead ends: 131818 [2024-10-24 03:04:12,969 INFO L226 Difference]: Without dead ends: 98623 [2024-10-24 03:04:13,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:04:13,051 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1415 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 3428 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 3521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:04:13,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1808 Invalid, 3521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3428 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 03:04:13,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98623 states. [2024-10-24 03:04:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98623 to 67597. [2024-10-24 03:04:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67597 states, 61245 states have (on average 1.579443219854682) internal successors, (96733), 61513 states have internal predecessors, (96733), 4391 states have call successors, (4391), 1658 states have call predecessors, (4391), 1959 states have return successors, (11274), 4681 states have call predecessors, (11274), 4390 states have call successors, (11274) [2024-10-24 03:04:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67597 states to 67597 states and 112398 transitions. [2024-10-24 03:04:19,641 INFO L78 Accepts]: Start accepts. Automaton has 67597 states and 112398 transitions. Word has length 131 [2024-10-24 03:04:19,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:04:19,642 INFO L471 AbstractCegarLoop]: Abstraction has 67597 states and 112398 transitions. [2024-10-24 03:04:19,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:04:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 67597 states and 112398 transitions. [2024-10-24 03:04:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:04:19,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:04:19,670 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] [2024-10-24 03:04:19,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 03:04:19,671 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:04:19,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:04:19,671 INFO L85 PathProgramCache]: Analyzing trace with hash 340255981, now seen corresponding path program 1 times [2024-10-24 03:04:19,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:04:19,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173892591] [2024-10-24 03:04:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:04:19,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:04:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:04:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 03:04:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 03:04:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 03:04:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 03:04:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:04:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:04:19,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:04:19,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173892591] [2024-10-24 03:04:19,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173892591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:04:19,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:04:19,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:04:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460578791] [2024-10-24 03:04:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:04:19,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:04:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:04:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:04:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:04:19,805 INFO L87 Difference]: Start difference. First operand 67597 states and 112398 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)