./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.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 f24e14c02d3357f8669328b41c4b37af446f7269afa24af78cb772dc24fa0c01 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:55:16,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:55:16,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:55:16,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:55:16,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:55:16,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:55:16,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:55:16,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:55:16,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:55:16,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:55:16,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:55:16,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:55:16,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:55:16,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:55:16,168 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:55:16,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:55:16,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:55:16,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:55:16,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:55:16,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:55:16,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:55:16,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:55:16,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:55:16,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:55:16,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:55:16,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:55:16,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:55:16,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:55:16,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:55:16,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:55:16,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:55:16,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:55:16,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:55:16,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:55:16,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:55:16,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:55:16,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:55:16,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:55:16,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:55:16,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:55:16,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:55:16,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:55:16,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24e14c02d3357f8669328b41c4b37af446f7269afa24af78cb772dc24fa0c01 [2024-11-11 22:55:16,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:55:16,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:55:16,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:55:16,429 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:55:16,430 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:55:16,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c [2024-11-11 22:55:17,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:55:18,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:55:18,023 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c [2024-11-11 22:55:18,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1da7ebd/164436af3b564ecdb766cbeec4e4dec2/FLAG7b1454bae [2024-11-11 22:55:18,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f1da7ebd/164436af3b564ecdb766cbeec4e4dec2 [2024-11-11 22:55:18,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:55:18,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:55:18,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:55:18,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:55:18,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:55:18,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ffac91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18, skipping insertion in model container [2024-11-11 22:55:18,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:55:18,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c[914,927] [2024-11-11 22:55:18,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c[7115,7128] [2024-11-11 22:55:18,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:55:18,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:55:18,470 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c[914,927] [2024-11-11 22:55:18,503 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.01.cil-1.c[7115,7128] [2024-11-11 22:55:18,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:55:18,549 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:55:18,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18 WrapperNode [2024-11-11 22:55:18,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:55:18,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:55:18,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:55:18,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:55:18,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,599 INFO L138 Inliner]: procedures = 55, calls = 60, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 408 [2024-11-11 22:55:18,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:55:18,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:55:18,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:55:18,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:55:18,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,645 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:55:18,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:55:18,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:55:18,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:55:18,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:55:18,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (1/1) ... [2024-11-11 22:55:18,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:55:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:18,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:55:18,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:55:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:55:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:55:18,766 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:55:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:55:18,767 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:55:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:55:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:55:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:55:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:55:18,768 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:55:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:55:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:55:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:55:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:55:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:55:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:55:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:55:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:55:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:55:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:55:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:55:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:55:18,866 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:55:18,868 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:55:19,289 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-11 22:55:19,289 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:55:19,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:55:19,310 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-11 22:55:19,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:55:19 BoogieIcfgContainer [2024-11-11 22:55:19,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:55:19,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:55:19,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:55:19,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:55:19,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:55:18" (1/3) ... [2024-11-11 22:55:19,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1cbf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:55:19, skipping insertion in model container [2024-11-11 22:55:19,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:55:18" (2/3) ... [2024-11-11 22:55:19,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1cbf9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:55:19, skipping insertion in model container [2024-11-11 22:55:19,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:55:19" (3/3) ... [2024-11-11 22:55:19,319 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.01.cil-1.c [2024-11-11 22:55:19,336 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:55:19,336 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:55:19,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:55:19,409 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;@7114b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:55:19,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:55:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 210 states, 164 states have (on average 1.524390243902439) internal successors, (250), 170 states have internal predecessors, (250), 29 states have call successors, (29), 14 states have call predecessors, (29), 14 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-11 22:55:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:19,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:19,425 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:19,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:19,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash 14366042, now seen corresponding path program 1 times [2024-11-11 22:55:19,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:19,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931310638] [2024-11-11 22:55:19,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:19,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:19,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:19,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:20,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:20,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:20,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:20,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931310638] [2024-11-11 22:55:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931310638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:20,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:20,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940919099] [2024-11-11 22:55:20,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:20,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:20,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:20,122 INFO L87 Difference]: Start difference. First operand has 210 states, 164 states have (on average 1.524390243902439) internal successors, (250), 170 states have internal predecessors, (250), 29 states have call successors, (29), 14 states have call predecessors, (29), 14 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:21,093 INFO L93 Difference]: Finished difference Result 536 states and 796 transitions. [2024-11-11 22:55:21,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:21,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:21,112 INFO L225 Difference]: With dead ends: 536 [2024-11-11 22:55:21,113 INFO L226 Difference]: Without dead ends: 333 [2024-11-11 22:55:21,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:21,124 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 526 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:21,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 638 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:55:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-11 22:55:21,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 292. [2024-11-11 22:55:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 231 states have (on average 1.4242424242424243) internal successors, (329), 236 states have internal predecessors, (329), 39 states have call successors, (39), 20 states have call predecessors, (39), 20 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-11-11 22:55:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 408 transitions. [2024-11-11 22:55:21,197 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 408 transitions. Word has length 57 [2024-11-11 22:55:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:21,198 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 408 transitions. [2024-11-11 22:55:21,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 408 transitions. [2024-11-11 22:55:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:21,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:21,201 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:21,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:55:21,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:21,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash -897585954, now seen corresponding path program 1 times [2024-11-11 22:55:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:21,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121961253] [2024-11-11 22:55:21,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:21,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:21,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:21,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121961253] [2024-11-11 22:55:21,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121961253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:21,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:21,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:21,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137768233] [2024-11-11 22:55:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:21,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:21,379 INFO L87 Difference]: Start difference. First operand 292 states and 408 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:22,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:22,312 INFO L93 Difference]: Finished difference Result 630 states and 888 transitions. [2024-11-11 22:55:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:22,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:22,317 INFO L225 Difference]: With dead ends: 630 [2024-11-11 22:55:22,318 INFO L226 Difference]: Without dead ends: 443 [2024-11-11 22:55:22,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:55:22,321 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 507 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:22,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 932 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:55:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-11 22:55:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 379. [2024-11-11 22:55:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 301 states have (on average 1.415282392026578) internal successors, (426), 307 states have internal predecessors, (426), 49 states have call successors, (49), 26 states have call predecessors, (49), 27 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:55:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 527 transitions. [2024-11-11 22:55:22,376 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 527 transitions. Word has length 57 [2024-11-11 22:55:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:22,376 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 527 transitions. [2024-11-11 22:55:22,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 527 transitions. [2024-11-11 22:55:22,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:22,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:22,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:22,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:55:22,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:22,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:22,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1347993500, now seen corresponding path program 1 times [2024-11-11 22:55:22,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:22,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221283244] [2024-11-11 22:55:22,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:22,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221283244] [2024-11-11 22:55:22,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221283244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:22,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489057703] [2024-11-11 22:55:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:22,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:22,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:22,517 INFO L87 Difference]: Start difference. First operand 379 states and 527 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:23,032 INFO L93 Difference]: Finished difference Result 715 states and 1009 transitions. [2024-11-11 22:55:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:55:23,033 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:23,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:23,038 INFO L225 Difference]: With dead ends: 715 [2024-11-11 22:55:23,042 INFO L226 Difference]: Without dead ends: 441 [2024-11-11 22:55:23,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:23,045 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 540 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:23,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 495 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:23,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-11 22:55:23,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 379. [2024-11-11 22:55:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 301 states have (on average 1.4053156146179402) internal successors, (423), 307 states have internal predecessors, (423), 49 states have call successors, (49), 26 states have call predecessors, (49), 27 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:55:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 524 transitions. [2024-11-11 22:55:23,102 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 524 transitions. Word has length 57 [2024-11-11 22:55:23,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:23,102 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 524 transitions. [2024-11-11 22:55:23,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:23,103 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 524 transitions. [2024-11-11 22:55:23,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:23,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:23,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:23,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:55:23,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:23,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:23,106 INFO L85 PathProgramCache]: Analyzing trace with hash 450600222, now seen corresponding path program 1 times [2024-11-11 22:55:23,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:23,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743157873] [2024-11-11 22:55:23,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:23,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743157873] [2024-11-11 22:55:23,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743157873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:23,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:23,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957067124] [2024-11-11 22:55:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:23,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:23,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:23,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:23,240 INFO L87 Difference]: Start difference. First operand 379 states and 524 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:23,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:23,843 INFO L93 Difference]: Finished difference Result 712 states and 1003 transitions. [2024-11-11 22:55:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:55:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:23,847 INFO L225 Difference]: With dead ends: 712 [2024-11-11 22:55:23,848 INFO L226 Difference]: Without dead ends: 439 [2024-11-11 22:55:23,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:55:23,850 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 211 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:23,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 846 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-11 22:55:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 388. [2024-11-11 22:55:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 310 states have (on average 1.3935483870967742) internal successors, (432), 316 states have internal predecessors, (432), 49 states have call successors, (49), 26 states have call predecessors, (49), 27 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:55:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 533 transitions. [2024-11-11 22:55:23,883 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 533 transitions. Word has length 57 [2024-11-11 22:55:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:23,884 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 533 transitions. [2024-11-11 22:55:23,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 533 transitions. [2024-11-11 22:55:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:23,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:23,886 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:23,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:55:23,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:23,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash 378213664, now seen corresponding path program 1 times [2024-11-11 22:55:23,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:23,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043778823] [2024-11-11 22:55:23,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:23,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:23,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043778823] [2024-11-11 22:55:23,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043778823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:23,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:23,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:23,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458548332] [2024-11-11 22:55:23,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:23,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:23,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:23,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:23,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:23,991 INFO L87 Difference]: Start difference. First operand 388 states and 533 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:24,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:24,745 INFO L93 Difference]: Finished difference Result 1032 states and 1426 transitions. [2024-11-11 22:55:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:24,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:24,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:24,750 INFO L225 Difference]: With dead ends: 1032 [2024-11-11 22:55:24,751 INFO L226 Difference]: Without dead ends: 750 [2024-11-11 22:55:24,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:55:24,753 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 655 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:24,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 715 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:24,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-11 22:55:24,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 643. [2024-11-11 22:55:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 517 states have (on average 1.377176015473888) internal successors, (712), 525 states have internal predecessors, (712), 77 states have call successors, (77), 44 states have call predecessors, (77), 47 states have return successors, (84), 76 states have call predecessors, (84), 75 states have call successors, (84) [2024-11-11 22:55:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 873 transitions. [2024-11-11 22:55:24,804 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 873 transitions. Word has length 57 [2024-11-11 22:55:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:24,805 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 873 transitions. [2024-11-11 22:55:24,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 873 transitions. [2024-11-11 22:55:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:24,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:24,806 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:24,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:55:24,807 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1393257311, now seen corresponding path program 1 times [2024-11-11 22:55:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811728058] [2024-11-11 22:55:24,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811728058] [2024-11-11 22:55:24,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811728058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:24,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:24,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:24,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763651044] [2024-11-11 22:55:24,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:24,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:24,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:24,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:24,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:24,922 INFO L87 Difference]: Start difference. First operand 643 states and 873 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:25,534 INFO L93 Difference]: Finished difference Result 1297 states and 1784 transitions. [2024-11-11 22:55:25,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:55:25,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 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 57 [2024-11-11 22:55:25,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:25,539 INFO L225 Difference]: With dead ends: 1297 [2024-11-11 22:55:25,540 INFO L226 Difference]: Without dead ends: 760 [2024-11-11 22:55:25,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:55:25,543 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 216 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:25,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 842 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-11 22:55:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 652. [2024-11-11 22:55:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 526 states have (on average 1.3650190114068441) internal successors, (718), 534 states have internal predecessors, (718), 77 states have call successors, (77), 44 states have call predecessors, (77), 47 states have return successors, (84), 76 states have call predecessors, (84), 75 states have call successors, (84) [2024-11-11 22:55:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 879 transitions. [2024-11-11 22:55:25,593 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 879 transitions. Word has length 57 [2024-11-11 22:55:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:25,594 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 879 transitions. [2024-11-11 22:55:25,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 879 transitions. [2024-11-11 22:55:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:25,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:25,596 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:25,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:55:25,596 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:25,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash 529970723, now seen corresponding path program 1 times [2024-11-11 22:55:25,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:25,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214533320] [2024-11-11 22:55:25,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:25,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:25,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:25,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214533320] [2024-11-11 22:55:25,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214533320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:25,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:25,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:25,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986090679] [2024-11-11 22:55:25,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:25,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:25,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:25,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:25,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:25,749 INFO L87 Difference]: Start difference. First operand 652 states and 879 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:26,503 INFO L93 Difference]: Finished difference Result 1176 states and 1578 transitions. [2024-11-11 22:55:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:55:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-11 22:55:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:26,509 INFO L225 Difference]: With dead ends: 1176 [2024-11-11 22:55:26,509 INFO L226 Difference]: Without dead ends: 798 [2024-11-11 22:55:26,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:55:26,512 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 705 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:26,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 718 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-11 22:55:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 644. [2024-11-11 22:55:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 520 states have (on average 1.3576923076923078) internal successors, (706), 526 states have internal predecessors, (706), 77 states have call successors, (77), 44 states have call predecessors, (77), 45 states have return successors, (77), 75 states have call predecessors, (77), 75 states have call successors, (77) [2024-11-11 22:55:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 860 transitions. [2024-11-11 22:55:26,570 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 860 transitions. Word has length 57 [2024-11-11 22:55:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:26,570 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 860 transitions. [2024-11-11 22:55:26,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 860 transitions. [2024-11-11 22:55:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:26,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:26,572 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:26,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:55:26,572 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:26,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash 748825441, now seen corresponding path program 1 times [2024-11-11 22:55:26,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:26,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911561037] [2024-11-11 22:55:26,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:26,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911561037] [2024-11-11 22:55:26,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911561037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:26,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:26,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34438799] [2024-11-11 22:55:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:26,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:26,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:26,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:26,673 INFO L87 Difference]: Start difference. First operand 644 states and 860 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:27,247 INFO L93 Difference]: Finished difference Result 1392 states and 1872 transitions. [2024-11-11 22:55:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-11 22:55:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:27,262 INFO L225 Difference]: With dead ends: 1392 [2024-11-11 22:55:27,262 INFO L226 Difference]: Without dead ends: 854 [2024-11-11 22:55:27,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-11 22:55:27,266 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 634 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:27,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 504 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-11 22:55:27,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 701. [2024-11-11 22:55:27,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 568 states have (on average 1.3169014084507042) internal successors, (748), 574 states have internal predecessors, (748), 80 states have call successors, (80), 50 states have call predecessors, (80), 51 states have return successors, (86), 78 states have call predecessors, (86), 78 states have call successors, (86) [2024-11-11 22:55:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 914 transitions. [2024-11-11 22:55:27,337 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 914 transitions. Word has length 57 [2024-11-11 22:55:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:27,339 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 914 transitions. [2024-11-11 22:55:27,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 914 transitions. [2024-11-11 22:55:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:27,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:27,340 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:27,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:55:27,341 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:27,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:27,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1171527267, now seen corresponding path program 1 times [2024-11-11 22:55:27,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:27,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20469541] [2024-11-11 22:55:27,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:27,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:27,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20469541] [2024-11-11 22:55:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20469541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:27,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:27,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:27,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582306432] [2024-11-11 22:55:27,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:27,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:27,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:27,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:27,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:27,512 INFO L87 Difference]: Start difference. First operand 701 states and 914 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:28,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:28,309 INFO L93 Difference]: Finished difference Result 1637 states and 2110 transitions. [2024-11-11 22:55:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:55:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-11 22:55:28,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:28,315 INFO L225 Difference]: With dead ends: 1637 [2024-11-11 22:55:28,315 INFO L226 Difference]: Without dead ends: 1043 [2024-11-11 22:55:28,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-11 22:55:28,317 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 688 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:28,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 720 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-11-11 22:55:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 871. [2024-11-11 22:55:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 706 states have (on average 1.3002832861189801) internal successors, (918), 714 states have internal predecessors, (918), 98 states have call successors, (98), 62 states have call predecessors, (98), 65 states have return successors, (110), 97 states have call predecessors, (110), 96 states have call successors, (110) [2024-11-11 22:55:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1126 transitions. [2024-11-11 22:55:28,379 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1126 transitions. Word has length 57 [2024-11-11 22:55:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:28,380 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1126 transitions. [2024-11-11 22:55:28,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:55:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1126 transitions. [2024-11-11 22:55:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-11 22:55:28,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:28,381 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:28,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:55:28,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:28,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash 353878817, now seen corresponding path program 1 times [2024-11-11 22:55:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:28,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351138090] [2024-11-11 22:55:28,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:28,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:28,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351138090] [2024-11-11 22:55:28,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351138090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:28,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:28,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:55:28,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916123267] [2024-11-11 22:55:28,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:28,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:55:28,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:28,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:55:28,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:55:28,437 INFO L87 Difference]: Start difference. First operand 871 states and 1126 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-11 22:55:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:28,962 INFO L93 Difference]: Finished difference Result 2349 states and 3044 transitions. [2024-11-11 22:55:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:55:28,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2024-11-11 22:55:28,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:28,972 INFO L225 Difference]: With dead ends: 2349 [2024-11-11 22:55:28,972 INFO L226 Difference]: Without dead ends: 1585 [2024-11-11 22:55:28,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:28,976 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 528 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:28,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 454 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-11 22:55:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1415. [2024-11-11 22:55:29,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1144 states have (on average 1.2797202797202798) internal successors, (1464), 1160 states have internal predecessors, (1464), 160 states have call successors, (160), 104 states have call predecessors, (160), 109 states have return successors, (173), 153 states have call predecessors, (173), 158 states have call successors, (173) [2024-11-11 22:55:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1797 transitions. [2024-11-11 22:55:29,068 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1797 transitions. Word has length 57 [2024-11-11 22:55:29,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:29,068 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1797 transitions. [2024-11-11 22:55:29,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-11 22:55:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1797 transitions. [2024-11-11 22:55:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:29,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:29,070 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:29,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:55:29,070 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:29,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash -391734706, now seen corresponding path program 1 times [2024-11-11 22:55:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:29,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670870810] [2024-11-11 22:55:29,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:29,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:29,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:29,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670870810] [2024-11-11 22:55:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670870810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:29,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:29,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805885955] [2024-11-11 22:55:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:29,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:29,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:29,188 INFO L87 Difference]: Start difference. First operand 1415 states and 1797 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:29,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:29,910 INFO L93 Difference]: Finished difference Result 1638 states and 2112 transitions. [2024-11-11 22:55:29,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:55:29,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:55:29,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:29,919 INFO L225 Difference]: With dead ends: 1638 [2024-11-11 22:55:29,919 INFO L226 Difference]: Without dead ends: 1550 [2024-11-11 22:55:29,921 INFO L434 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 [2024-11-11 22:55:29,922 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 538 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:29,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 674 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-11-11 22:55:30,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1511. [2024-11-11 22:55:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1220 states have (on average 1.2860655737704918) internal successors, (1569), 1238 states have internal predecessors, (1569), 171 states have call successors, (171), 111 states have call predecessors, (171), 118 states have return successors, (189), 165 states have call predecessors, (189), 169 states have call successors, (189) [2024-11-11 22:55:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1929 transitions. [2024-11-11 22:55:30,056 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1929 transitions. Word has length 65 [2024-11-11 22:55:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:30,056 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 1929 transitions. [2024-11-11 22:55:30,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1929 transitions. [2024-11-11 22:55:30,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:30,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:30,058 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:30,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:55:30,059 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:30,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:30,059 INFO L85 PathProgramCache]: Analyzing trace with hash 12051245, now seen corresponding path program 1 times [2024-11-11 22:55:30,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:30,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125751277] [2024-11-11 22:55:30,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:30,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:30,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:30,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125751277] [2024-11-11 22:55:30,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125751277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697860631] [2024-11-11 22:55:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:30,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:30,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:30,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:30,191 INFO L87 Difference]: Start difference. First operand 1511 states and 1929 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:31,139 INFO L93 Difference]: Finished difference Result 1858 states and 2406 transitions. [2024-11-11 22:55:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:55:31,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:55:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:31,148 INFO L225 Difference]: With dead ends: 1858 [2024-11-11 22:55:31,149 INFO L226 Difference]: Without dead ends: 1681 [2024-11-11 22:55:31,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:55:31,151 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 718 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:31,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 928 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2024-11-11 22:55:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1607. [2024-11-11 22:55:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1296 states have (on average 1.290895061728395) internal successors, (1673), 1316 states have internal predecessors, (1673), 182 states have call successors, (182), 118 states have call predecessors, (182), 127 states have return successors, (208), 177 states have call predecessors, (208), 180 states have call successors, (208) [2024-11-11 22:55:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2063 transitions. [2024-11-11 22:55:31,312 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2063 transitions. Word has length 65 [2024-11-11 22:55:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:31,313 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2063 transitions. [2024-11-11 22:55:31,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2063 transitions. [2024-11-11 22:55:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:31,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:31,316 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:31,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:55:31,316 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:31,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2016534865, now seen corresponding path program 1 times [2024-11-11 22:55:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916142300] [2024-11-11 22:55:31,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:31,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:31,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916142300] [2024-11-11 22:55:31,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916142300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:31,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:31,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:31,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127728954] [2024-11-11 22:55:31,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:31,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:31,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:31,457 INFO L87 Difference]: Start difference. First operand 1607 states and 2063 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:55:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:32,210 INFO L93 Difference]: Finished difference Result 1906 states and 2474 transitions. [2024-11-11 22:55:32,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:32,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 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 65 [2024-11-11 22:55:32,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:32,219 INFO L225 Difference]: With dead ends: 1906 [2024-11-11 22:55:32,219 INFO L226 Difference]: Without dead ends: 1639 [2024-11-11 22:55:32,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:55:32,222 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 204 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:32,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1116 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-11-11 22:55:32,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1612. [2024-11-11 22:55:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1300 states have (on average 1.2884615384615385) internal successors, (1675), 1320 states have internal predecessors, (1675), 182 states have call successors, (182), 118 states have call predecessors, (182), 128 states have return successors, (209), 178 states have call predecessors, (209), 180 states have call successors, (209) [2024-11-11 22:55:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2066 transitions. [2024-11-11 22:55:32,377 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2066 transitions. Word has length 65 [2024-11-11 22:55:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:32,377 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2066 transitions. [2024-11-11 22:55:32,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:55:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2066 transitions. [2024-11-11 22:55:32,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:32,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:32,380 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:32,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:55:32,380 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:32,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1249073133, now seen corresponding path program 1 times [2024-11-11 22:55:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706637058] [2024-11-11 22:55:32,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:32,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706637058] [2024-11-11 22:55:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706637058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:32,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:32,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:32,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446935948] [2024-11-11 22:55:32,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:32,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:32,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:32,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:32,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:32,541 INFO L87 Difference]: Start difference. First operand 1612 states and 2066 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:55:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:34,148 INFO L93 Difference]: Finished difference Result 3274 states and 4338 transitions. [2024-11-11 22:55:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:55:34,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:55:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:34,162 INFO L225 Difference]: With dead ends: 3274 [2024-11-11 22:55:34,162 INFO L226 Difference]: Without dead ends: 3002 [2024-11-11 22:55:34,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:55:34,165 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 1558 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:34,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1572 Valid, 1089 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:55:34,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-11 22:55:34,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2752. [2024-11-11 22:55:34,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2200 states have (on average 1.298181818181818) internal successors, (2856), 2240 states have internal predecessors, (2856), 299 states have call successors, (299), 220 states have call predecessors, (299), 251 states have return successors, (395), 296 states have call predecessors, (395), 297 states have call successors, (395) [2024-11-11 22:55:34,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3550 transitions. [2024-11-11 22:55:34,454 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3550 transitions. Word has length 65 [2024-11-11 22:55:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:34,455 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 3550 transitions. [2024-11-11 22:55:34,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:55:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3550 transitions. [2024-11-11 22:55:34,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:34,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:34,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:34,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:55:34,458 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:34,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:34,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1994445074, now seen corresponding path program 1 times [2024-11-11 22:55:34,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:34,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217079474] [2024-11-11 22:55:34,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:34,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:34,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:34,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217079474] [2024-11-11 22:55:34,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217079474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:34,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:34,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:34,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025911408] [2024-11-11 22:55:34,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:34,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:34,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:34,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:34,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:34,570 INFO L87 Difference]: Start difference. First operand 2752 states and 3550 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:55:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:35,335 INFO L93 Difference]: Finished difference Result 4349 states and 5669 transitions. [2024-11-11 22:55:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:55:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 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 65 [2024-11-11 22:55:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:35,351 INFO L225 Difference]: With dead ends: 4349 [2024-11-11 22:55:35,351 INFO L226 Difference]: Without dead ends: 2937 [2024-11-11 22:55:35,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:55:35,357 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 302 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:35,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 997 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2024-11-11 22:55:35,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2797. [2024-11-11 22:55:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2236 states have (on average 1.289355992844365) internal successors, (2883), 2276 states have internal predecessors, (2883), 299 states have call successors, (299), 220 states have call predecessors, (299), 260 states have return successors, (407), 305 states have call predecessors, (407), 297 states have call successors, (407) [2024-11-11 22:55:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3589 transitions. [2024-11-11 22:55:35,702 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3589 transitions. Word has length 65 [2024-11-11 22:55:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:35,703 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 3589 transitions. [2024-11-11 22:55:35,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:55:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3589 transitions. [2024-11-11 22:55:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:35,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:35,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:35,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:55:35,705 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:35,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:35,705 INFO L85 PathProgramCache]: Analyzing trace with hash -608241680, now seen corresponding path program 1 times [2024-11-11 22:55:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:35,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780575189] [2024-11-11 22:55:35,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:35,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:35,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:35,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780575189] [2024-11-11 22:55:35,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780575189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:35,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:35,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:35,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794529216] [2024-11-11 22:55:35,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:35,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:35,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:35,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:35,845 INFO L87 Difference]: Start difference. First operand 2797 states and 3589 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:36,694 INFO L93 Difference]: Finished difference Result 4232 states and 5428 transitions. [2024-11-11 22:55:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:55:36,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:55:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:36,709 INFO L225 Difference]: With dead ends: 4232 [2024-11-11 22:55:36,709 INFO L226 Difference]: Without dead ends: 2995 [2024-11-11 22:55:36,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:55:36,713 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 682 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:36,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 695 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:55:36,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-11-11 22:55:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2775. [2024-11-11 22:55:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2222 states have (on average 1.2866786678667868) internal successors, (2859), 2256 states have internal predecessors, (2859), 299 states have call successors, (299), 220 states have call predecessors, (299), 252 states have return successors, (391), 303 states have call predecessors, (391), 297 states have call successors, (391) [2024-11-11 22:55:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3549 transitions. [2024-11-11 22:55:37,001 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3549 transitions. Word has length 65 [2024-11-11 22:55:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:37,001 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3549 transitions. [2024-11-11 22:55:37,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3549 transitions. [2024-11-11 22:55:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:55:37,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:37,003 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:37,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:55:37,003 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:37,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash -742255186, now seen corresponding path program 1 times [2024-11-11 22:55:37,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:37,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921391706] [2024-11-11 22:55:37,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:37,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:37,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:37,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921391706] [2024-11-11 22:55:37,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921391706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:37,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:37,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:37,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39771651] [2024-11-11 22:55:37,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:37,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:37,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:37,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:37,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:37,103 INFO L87 Difference]: Start difference. First operand 2775 states and 3549 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:38,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:38,066 INFO L93 Difference]: Finished difference Result 5850 states and 7528 transitions. [2024-11-11 22:55:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:55:38,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:55:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:38,087 INFO L225 Difference]: With dead ends: 5850 [2024-11-11 22:55:38,087 INFO L226 Difference]: Without dead ends: 4418 [2024-11-11 22:55:38,093 INFO L434 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 [2024-11-11 22:55:38,094 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 660 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:38,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 567 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2024-11-11 22:55:38,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 4146. [2024-11-11 22:55:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4146 states, 3288 states have (on average 1.27007299270073) internal successors, (4176), 3343 states have internal predecessors, (4176), 451 states have call successors, (451), 343 states have call predecessors, (451), 405 states have return successors, (663), 467 states have call predecessors, (663), 449 states have call successors, (663) [2024-11-11 22:55:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 5290 transitions. [2024-11-11 22:55:38,543 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 5290 transitions. Word has length 65 [2024-11-11 22:55:38,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:38,543 INFO L471 AbstractCegarLoop]: Abstraction has 4146 states and 5290 transitions. [2024-11-11 22:55:38,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:55:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 5290 transitions. [2024-11-11 22:55:38,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:55:38,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:38,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:38,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:55:38,546 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:38,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:38,547 INFO L85 PathProgramCache]: Analyzing trace with hash -851736989, now seen corresponding path program 1 times [2024-11-11 22:55:38,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:38,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281223026] [2024-11-11 22:55:38,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:38,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:38,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:38,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281223026] [2024-11-11 22:55:38,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281223026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:38,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:38,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:38,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554880869] [2024-11-11 22:55:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:38,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:38,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:38,641 INFO L87 Difference]: Start difference. First operand 4146 states and 5290 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) [2024-11-11 22:55:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:39,596 INFO L93 Difference]: Finished difference Result 9164 states and 11804 transitions. [2024-11-11 22:55:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:55:39,597 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 [2024-11-11 22:55:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:39,635 INFO L225 Difference]: With dead ends: 9164 [2024-11-11 22:55:39,636 INFO L226 Difference]: Without dead ends: 6340 [2024-11-11 22:55:39,645 INFO L434 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 [2024-11-11 22:55:39,647 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 386 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:39,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 676 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2024-11-11 22:55:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 5824. [2024-11-11 22:55:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 4573 states have (on average 1.2630658211239887) internal successors, (5776), 4635 states have internal predecessors, (5776), 645 states have call successors, (645), 517 states have call predecessors, (645), 604 states have return successors, (984), 679 states have call predecessors, (984), 643 states have call successors, (984) [2024-11-11 22:55:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 7405 transitions. [2024-11-11 22:55:40,373 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 7405 transitions. Word has length 66 [2024-11-11 22:55:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:40,374 INFO L471 AbstractCegarLoop]: Abstraction has 5824 states and 7405 transitions. [2024-11-11 22:55:40,375 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) [2024-11-11 22:55:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 7405 transitions. [2024-11-11 22:55:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:55:40,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:40,377 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:40,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 22:55:40,378 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:40,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:40,378 INFO L85 PathProgramCache]: Analyzing trace with hash -352881076, now seen corresponding path program 1 times [2024-11-11 22:55:40,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312847111] [2024-11-11 22:55:40,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:40,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312847111] [2024-11-11 22:55:40,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312847111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:40,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:40,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079230120] [2024-11-11 22:55:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:40,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:40,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:40,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:40,469 INFO L87 Difference]: Start difference. First operand 5824 states and 7405 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-11 22:55:41,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:41,449 INFO L93 Difference]: Finished difference Result 7454 states and 9407 transitions. [2024-11-11 22:55:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:55:41,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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 73 [2024-11-11 22:55:41,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:41,481 INFO L225 Difference]: With dead ends: 7454 [2024-11-11 22:55:41,481 INFO L226 Difference]: Without dead ends: 7451 [2024-11-11 22:55:41,484 INFO L434 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 [2024-11-11 22:55:41,485 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 929 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:41,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 461 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 22:55:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2024-11-11 22:55:42,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 6878. [2024-11-11 22:55:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6878 states, 5376 states have (on average 1.2548363095238095) internal successors, (6746), 5447 states have internal predecessors, (6746), 771 states have call successors, (771), 631 states have call predecessors, (771), 729 states have return successors, (1177), 807 states have call predecessors, (1177), 770 states have call successors, (1177) [2024-11-11 22:55:42,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 8694 transitions. [2024-11-11 22:55:42,462 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 8694 transitions. Word has length 73 [2024-11-11 22:55:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:42,462 INFO L471 AbstractCegarLoop]: Abstraction has 6878 states and 8694 transitions. [2024-11-11 22:55:42,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-11 22:55:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 8694 transitions. [2024-11-11 22:55:42,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-11 22:55:42,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:42,467 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:42,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 22:55:42,467 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:42,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1944959948, now seen corresponding path program 1 times [2024-11-11 22:55:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:42,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571073412] [2024-11-11 22:55:42,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:42,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:42,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:42,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571073412] [2024-11-11 22:55:42,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571073412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:55:42,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055625224] [2024-11-11 22:55:42,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:42,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:42,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:55:42,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:55:42,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:55:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:42,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:55:42,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:55:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:43,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:55:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055625224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:55:43,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:55:43,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-11 22:55:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454249683] [2024-11-11 22:55:43,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:55:43,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 22:55:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:43,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 22:55:43,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:55:43,218 INFO L87 Difference]: Start difference. First operand 6878 states and 8694 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-11-11 22:55:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:45,938 INFO L93 Difference]: Finished difference Result 14524 states and 18222 transitions. [2024-11-11 22:55:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:55:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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 74 [2024-11-11 22:55:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:45,996 INFO L225 Difference]: With dead ends: 14524 [2024-11-11 22:55:45,996 INFO L226 Difference]: Without dead ends: 14521 [2024-11-11 22:55:46,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-11 22:55:46,004 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 1113 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:46,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1238 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:55:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14521 states. [2024-11-11 22:55:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14521 to 12136. [2024-11-11 22:55:47,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 9468 states have (on average 1.252112378538234) internal successors, (11855), 9591 states have internal predecessors, (11855), 1337 states have call successors, (1337), 1121 states have call predecessors, (1337), 1329 states have return successors, (2116), 1431 states have call predecessors, (2116), 1336 states have call successors, (2116) [2024-11-11 22:55:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 15308 transitions. [2024-11-11 22:55:47,880 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 15308 transitions. Word has length 74 [2024-11-11 22:55:47,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:47,880 INFO L471 AbstractCegarLoop]: Abstraction has 12136 states and 15308 transitions. [2024-11-11 22:55:47,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 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) [2024-11-11 22:55:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 15308 transitions. [2024-11-11 22:55:47,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:55:47,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:47,884 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:47,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 22:55:48,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:55:48,086 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:48,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1924460340, now seen corresponding path program 2 times [2024-11-11 22:55:48,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062646437] [2024-11-11 22:55:48,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:48,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:55:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:48,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062646437] [2024-11-11 22:55:48,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062646437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:48,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:48,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:55:48,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025588364] [2024-11-11 22:55:48,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:48,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:55:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:55:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:55:48,151 INFO L87 Difference]: Start difference. First operand 12136 states and 15308 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-11 22:55:49,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:49,540 INFO L93 Difference]: Finished difference Result 18679 states and 23650 transitions. [2024-11-11 22:55:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:55:49,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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 77 [2024-11-11 22:55:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:49,582 INFO L225 Difference]: With dead ends: 18679 [2024-11-11 22:55:49,582 INFO L226 Difference]: Without dead ends: 8741 [2024-11-11 22:55:49,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:55:49,613 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 430 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:49,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 674 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:55:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2024-11-11 22:55:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8189. [2024-11-11 22:55:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8189 states, 6415 states have (on average 1.230709275136399) internal successors, (7895), 6494 states have internal predecessors, (7895), 904 states have call successors, (904), 745 states have call predecessors, (904), 868 states have return successors, (1335), 957 states have call predecessors, (1335), 903 states have call successors, (1335) [2024-11-11 22:55:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 10134 transitions. [2024-11-11 22:55:50,610 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 10134 transitions. Word has length 77 [2024-11-11 22:55:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:50,611 INFO L471 AbstractCegarLoop]: Abstraction has 8189 states and 10134 transitions. [2024-11-11 22:55:50,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-11 22:55:50,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 10134 transitions. [2024-11-11 22:55:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:55:50,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:50,616 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:50,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:55:50,616 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:50,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1501980898, now seen corresponding path program 1 times [2024-11-11 22:55:50,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:50,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49391991] [2024-11-11 22:55:50,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:50,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:55:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:55:50,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49391991] [2024-11-11 22:55:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49391991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:50,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:50,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:55:50,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884284360] [2024-11-11 22:55:50,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:50,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:55:50,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:50,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:55:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:55:50,721 INFO L87 Difference]: Start difference. First operand 8189 states and 10134 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-11 22:55:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:53,174 INFO L93 Difference]: Finished difference Result 22063 states and 27351 transitions. [2024-11-11 22:55:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-11 22:55:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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 84 [2024-11-11 22:55:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:53,242 INFO L225 Difference]: With dead ends: 22063 [2024-11-11 22:55:53,242 INFO L226 Difference]: Without dead ends: 15220 [2024-11-11 22:55:53,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-11 22:55:53,266 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 772 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:53,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 922 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:55:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15220 states. [2024-11-11 22:55:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15220 to 14361. [2024-11-11 22:55:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14361 states, 11091 states have (on average 1.2065638806239294) internal successors, (13382), 11276 states have internal predecessors, (13382), 1620 states have call successors, (1620), 1349 states have call predecessors, (1620), 1648 states have return successors, (2738), 1749 states have call predecessors, (2738), 1619 states have call successors, (2738) [2024-11-11 22:55:55,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14361 states to 14361 states and 17740 transitions. [2024-11-11 22:55:55,479 INFO L78 Accepts]: Start accepts. Automaton has 14361 states and 17740 transitions. Word has length 84 [2024-11-11 22:55:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:55,480 INFO L471 AbstractCegarLoop]: Abstraction has 14361 states and 17740 transitions. [2024-11-11 22:55:55,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-11 22:55:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 14361 states and 17740 transitions. [2024-11-11 22:55:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:55:55,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:55,488 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:55:55,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:55:55,488 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:55,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2109222294, now seen corresponding path program 1 times [2024-11-11 22:55:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:55,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025017497] [2024-11-11 22:55:55,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:55,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:55:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:55:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:55:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:55:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:55:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:55:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 22:55:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 22:55:55,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:55,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025017497] [2024-11-11 22:55:55,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025017497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:55,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:55,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:55:55,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842000499] [2024-11-11 22:55:55,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:55,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:55:55,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:55,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:55:55,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:55:55,613 INFO L87 Difference]: Start difference. First operand 14361 states and 17740 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-11 22:55:57,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:55:57,861 INFO L93 Difference]: Finished difference Result 25235 states and 31059 transitions. [2024-11-11 22:55:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-11 22:55:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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 93 [2024-11-11 22:55:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:55:57,924 INFO L225 Difference]: With dead ends: 25235 [2024-11-11 22:55:57,924 INFO L226 Difference]: Without dead ends: 12836 [2024-11-11 22:55:57,963 INFO L434 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 [2024-11-11 22:55:57,964 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 1326 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:55:57,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 813 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:55:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12836 states. [2024-11-11 22:55:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12836 to 11936. [2024-11-11 22:55:59,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11936 states, 9257 states have (on average 1.1983363940801555) internal successors, (11093), 9409 states have internal predecessors, (11093), 1321 states have call successors, (1321), 1098 states have call predecessors, (1321), 1356 states have return successors, (2070), 1439 states have call predecessors, (2070), 1320 states have call successors, (2070) [2024-11-11 22:55:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11936 states to 11936 states and 14484 transitions. [2024-11-11 22:55:59,397 INFO L78 Accepts]: Start accepts. Automaton has 11936 states and 14484 transitions. Word has length 93 [2024-11-11 22:55:59,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:55:59,397 INFO L471 AbstractCegarLoop]: Abstraction has 11936 states and 14484 transitions. [2024-11-11 22:55:59,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-11 22:55:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 11936 states and 14484 transitions. [2024-11-11 22:55:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:55:59,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:55:59,404 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:55:59,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 22:55:59,404 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:55:59,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:55:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash 541241159, now seen corresponding path program 1 times [2024-11-11 22:55:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:55:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111697756] [2024-11-11 22:55:59,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:55:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:55:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:55:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:55:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:55:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:55:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:55:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 22:55:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:55:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 22:55:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:55:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 22:55:59,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:55:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111697756] [2024-11-11 22:55:59,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111697756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:55:59,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:55:59,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:55:59,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010547948] [2024-11-11 22:55:59,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:55:59,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:55:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:55:59,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:55:59,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:55:59,586 INFO L87 Difference]: Start difference. First operand 11936 states and 14484 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-11 22:56:01,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:01,535 INFO L93 Difference]: Finished difference Result 14588 states and 17908 transitions. [2024-11-11 22:56:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:01,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 93 [2024-11-11 22:56:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:01,604 INFO L225 Difference]: With dead ends: 14588 [2024-11-11 22:56:01,604 INFO L226 Difference]: Without dead ends: 13282 [2024-11-11 22:56:01,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:01,616 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 620 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:01,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 564 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:01,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13282 states. [2024-11-11 22:56:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13282 to 13029. [2024-11-11 22:56:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13029 states, 10118 states have (on average 1.2019173749752916) internal successors, (12161), 10290 states have internal predecessors, (12161), 1452 states have call successors, (1452), 1180 states have call predecessors, (1452), 1457 states have return successors, (2279), 1571 states have call predecessors, (2279), 1451 states have call successors, (2279) [2024-11-11 22:56:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13029 states to 13029 states and 15892 transitions. [2024-11-11 22:56:03,514 INFO L78 Accepts]: Start accepts. Automaton has 13029 states and 15892 transitions. Word has length 93 [2024-11-11 22:56:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:03,515 INFO L471 AbstractCegarLoop]: Abstraction has 13029 states and 15892 transitions. [2024-11-11 22:56:03,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-11 22:56:03,515 INFO L276 IsEmpty]: Start isEmpty. Operand 13029 states and 15892 transitions. [2024-11-11 22:56:03,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:56:03,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:03,522 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:03,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 22:56:03,522 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:03,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1337889787, now seen corresponding path program 1 times [2024-11-11 22:56:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:03,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959377419] [2024-11-11 22:56:03,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:03,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 22:56:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 22:56:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 22:56:03,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:03,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959377419] [2024-11-11 22:56:03,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959377419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:03,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:03,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:56:03,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214132061] [2024-11-11 22:56:03,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:03,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:56:03,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:03,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:56:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:56:03,586 INFO L87 Difference]: Start difference. First operand 13029 states and 15892 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:05,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:05,259 INFO L93 Difference]: Finished difference Result 15113 states and 18519 transitions. [2024-11-11 22:56:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:56:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2024-11-11 22:56:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:05,312 INFO L225 Difference]: With dead ends: 15113 [2024-11-11 22:56:05,313 INFO L226 Difference]: Without dead ends: 12714 [2024-11-11 22:56:05,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:05,327 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 353 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:05,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 451 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 22:56:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12714 states. [2024-11-11 22:56:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12714 to 12510. [2024-11-11 22:56:06,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12510 states, 9711 states have (on average 1.1992585727525487) internal successors, (11646), 9876 states have internal predecessors, (11646), 1384 states have call successors, (1384), 1139 states have call predecessors, (1384), 1413 states have return successors, (2185), 1505 states have call predecessors, (2185), 1383 states have call successors, (2185) [2024-11-11 22:56:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12510 states to 12510 states and 15215 transitions. [2024-11-11 22:56:06,768 INFO L78 Accepts]: Start accepts. Automaton has 12510 states and 15215 transitions. Word has length 93 [2024-11-11 22:56:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:06,768 INFO L471 AbstractCegarLoop]: Abstraction has 12510 states and 15215 transitions. [2024-11-11 22:56:06,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:56:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand 12510 states and 15215 transitions. [2024-11-11 22:56:06,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 22:56:06,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:06,775 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 22:56:06,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 22:56:06,776 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:06,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:06,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1068847020, now seen corresponding path program 1 times [2024-11-11 22:56:06,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:06,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626108501] [2024-11-11 22:56:06,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:06,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 22:56:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 22:56:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:06,866 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 22:56:06,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:06,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626108501] [2024-11-11 22:56:06,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626108501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:06,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:06,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:06,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552901824] [2024-11-11 22:56:06,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:06,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:06,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:06,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:06,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:06,870 INFO L87 Difference]: Start difference. First operand 12510 states and 15215 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-11 22:56:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:09,216 INFO L93 Difference]: Finished difference Result 16173 states and 19926 transitions. [2024-11-11 22:56:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-11 22:56:09,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 95 [2024-11-11 22:56:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:09,273 INFO L225 Difference]: With dead ends: 16173 [2024-11-11 22:56:09,274 INFO L226 Difference]: Without dead ends: 13434 [2024-11-11 22:56:09,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-11 22:56:09,294 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1285 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:09,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 760 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:56:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13434 states. [2024-11-11 22:56:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13434 to 13192. [2024-11-11 22:56:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13192 states, 10293 states have (on average 1.195278344505975) internal successors, (12303), 10466 states have internal predecessors, (12303), 1428 states have call successors, (1428), 1181 states have call predecessors, (1428), 1469 states have return successors, (2241), 1555 states have call predecessors, (2241), 1427 states have call successors, (2241) [2024-11-11 22:56:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13192 states to 13192 states and 15972 transitions. [2024-11-11 22:56:11,031 INFO L78 Accepts]: Start accepts. Automaton has 13192 states and 15972 transitions. Word has length 95 [2024-11-11 22:56:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:11,031 INFO L471 AbstractCegarLoop]: Abstraction has 13192 states and 15972 transitions. [2024-11-11 22:56:11,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-11 22:56:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13192 states and 15972 transitions. [2024-11-11 22:56:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 22:56:11,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:11,044 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:11,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 22:56:11,044 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:11,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1155400684, now seen corresponding path program 1 times [2024-11-11 22:56:11,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414815210] [2024-11-11 22:56:11,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 22:56:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 22:56:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 22:56:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 22:56:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-11 22:56:11,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:11,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414815210] [2024-11-11 22:56:11,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414815210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:11,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345790699] [2024-11-11 22:56:11,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:11,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:11,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:11,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:11,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:56:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:11,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:56:11,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-11 22:56:11,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:56:11,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345790699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:11,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:56:11,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-11 22:56:11,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497540780] [2024-11-11 22:56:11,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:11,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:56:11,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:11,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:56:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:11,317 INFO L87 Difference]: Start difference. First operand 13192 states and 15972 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:12,529 INFO L93 Difference]: Finished difference Result 15482 states and 18885 transitions. [2024-11-11 22:56:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:56:12,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2024-11-11 22:56:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:12,586 INFO L225 Difference]: With dead ends: 15482 [2024-11-11 22:56:12,586 INFO L226 Difference]: Without dead ends: 12980 [2024-11-11 22:56:12,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:12,598 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 228 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:12,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 291 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:56:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12980 states. [2024-11-11 22:56:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12980 to 12974. [2024-11-11 22:56:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12974 states, 10121 states have (on average 1.1851595692125283) internal successors, (11995), 10284 states have internal predecessors, (11995), 1403 states have call successors, (1403), 1170 states have call predecessors, (1403), 1448 states have return successors, (2178), 1529 states have call predecessors, (2178), 1402 states have call successors, (2178) [2024-11-11 22:56:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12974 states to 12974 states and 15576 transitions. [2024-11-11 22:56:14,559 INFO L78 Accepts]: Start accepts. Automaton has 12974 states and 15576 transitions. Word has length 138 [2024-11-11 22:56:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:14,560 INFO L471 AbstractCegarLoop]: Abstraction has 12974 states and 15576 transitions. [2024-11-11 22:56:14,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:14,560 INFO L276 IsEmpty]: Start isEmpty. Operand 12974 states and 15576 transitions. [2024-11-11 22:56:14,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 22:56:14,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:14,572 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:14,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 22:56:14,772 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,SelfDestructingSolverStorable26 [2024-11-11 22:56:14,773 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:14,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:14,773 INFO L85 PathProgramCache]: Analyzing trace with hash 324274607, now seen corresponding path program 1 times [2024-11-11 22:56:14,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:14,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69574258] [2024-11-11 22:56:14,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:14,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 22:56:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 22:56:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 22:56:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 22:56:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-11 22:56:14,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:14,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69574258] [2024-11-11 22:56:14,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69574258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:14,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700464032] [2024-11-11 22:56:14,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:14,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:14,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:14,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:14,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:56:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:14,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:56:14,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-11 22:56:15,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:56:15,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700464032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:15,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:56:15,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-11 22:56:15,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367601274] [2024-11-11 22:56:15,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:15,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:56:15,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:15,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:56:15,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:15,024 INFO L87 Difference]: Start difference. First operand 12974 states and 15576 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:16,454 INFO L93 Difference]: Finished difference Result 14166 states and 16973 transitions. [2024-11-11 22:56:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:56:16,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2024-11-11 22:56:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:16,488 INFO L225 Difference]: With dead ends: 14166 [2024-11-11 22:56:16,488 INFO L226 Difference]: Without dead ends: 11670 [2024-11-11 22:56:16,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:16,496 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 100 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:16,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 578 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:56:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2024-11-11 22:56:17,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 11670. [2024-11-11 22:56:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11670 states, 9047 states have (on average 1.184149441803913) internal successors, (10713), 9194 states have internal predecessors, (10713), 1285 states have call successors, (1285), 1080 states have call predecessors, (1285), 1336 states have return successors, (2023), 1405 states have call predecessors, (2023), 1284 states have call successors, (2023) [2024-11-11 22:56:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11670 states to 11670 states and 14021 transitions. [2024-11-11 22:56:17,731 INFO L78 Accepts]: Start accepts. Automaton has 11670 states and 14021 transitions. Word has length 138 [2024-11-11 22:56:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:17,732 INFO L471 AbstractCegarLoop]: Abstraction has 11670 states and 14021 transitions. [2024-11-11 22:56:17,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 11670 states and 14021 transitions. [2024-11-11 22:56:17,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-11 22:56:17,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:17,743 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:17,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 22:56:17,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:17,944 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:17,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1032136230, now seen corresponding path program 1 times [2024-11-11 22:56:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513364344] [2024-11-11 22:56:17,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 22:56:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 22:56:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 22:56:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 22:56:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 22:56:18,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:18,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513364344] [2024-11-11 22:56:18,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513364344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:18,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888908613] [2024-11-11 22:56:18,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:18,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:18,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:18,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:18,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:56:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:18,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 22:56:18,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-11 22:56:18,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:56:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888908613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:18,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:56:18,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2024-11-11 22:56:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476452390] [2024-11-11 22:56:18,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:18,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:56:18,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:18,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:56:18,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:18,201 INFO L87 Difference]: Start difference. First operand 11670 states and 14021 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:19,472 INFO L93 Difference]: Finished difference Result 12497 states and 14982 transitions. [2024-11-11 22:56:19,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:56:19,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-11 22:56:19,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:19,520 INFO L225 Difference]: With dead ends: 12497 [2024-11-11 22:56:19,521 INFO L226 Difference]: Without dead ends: 11670 [2024-11-11 22:56:19,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:19,530 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 72 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:19,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 535 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:56:19,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2024-11-11 22:56:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 11670. [2024-11-11 22:56:20,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11670 states, 9047 states have (on average 1.1828230352603073) internal successors, (10701), 9194 states have internal predecessors, (10701), 1285 states have call successors, (1285), 1080 states have call predecessors, (1285), 1336 states have return successors, (2023), 1405 states have call predecessors, (2023), 1284 states have call successors, (2023) [2024-11-11 22:56:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11670 states to 11670 states and 14009 transitions. [2024-11-11 22:56:20,939 INFO L78 Accepts]: Start accepts. Automaton has 11670 states and 14009 transitions. Word has length 139 [2024-11-11 22:56:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:20,939 INFO L471 AbstractCegarLoop]: Abstraction has 11670 states and 14009 transitions. [2024-11-11 22:56:20,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 22:56:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 11670 states and 14009 transitions. [2024-11-11 22:56:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-11 22:56:20,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:20,949 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:20,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 22:56:21,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-11 22:56:21,149 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:21,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:21,150 INFO L85 PathProgramCache]: Analyzing trace with hash 901242064, now seen corresponding path program 1 times [2024-11-11 22:56:21,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:21,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92586634] [2024-11-11 22:56:21,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:21,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:56:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 22:56:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:56:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 22:56:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 22:56:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 22:56:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 22:56:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-11 22:56:21,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92586634] [2024-11-11 22:56:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92586634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271012810] [2024-11-11 22:56:21,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:21,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:21,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:21,305 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:21,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 22:56:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:21,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 22:56:21,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 22:56:21,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:56:21,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271012810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:21,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:56:21,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-11 22:56:21,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689706432] [2024-11-11 22:56:21,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:21,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:21,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:21,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:21,457 INFO L87 Difference]: Start difference. First operand 11670 states and 14009 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-11 22:56:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:22,087 INFO L93 Difference]: Finished difference Result 16530 states and 19826 transitions. [2024-11-11 22:56:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:56:22,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-11 22:56:22,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:22,112 INFO L225 Difference]: With dead ends: 16530 [2024-11-11 22:56:22,112 INFO L226 Difference]: Without dead ends: 5948 [2024-11-11 22:56:22,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:22,129 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:22,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1306 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:56:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2024-11-11 22:56:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5794. [2024-11-11 22:56:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 4612 states have (on average 1.1637033824804857) internal successors, (5367), 4657 states have internal predecessors, (5367), 587 states have call successors, (587), 474 states have call predecessors, (587), 593 states have return successors, (863), 663 states have call predecessors, (863), 586 states have call successors, (863) [2024-11-11 22:56:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 6817 transitions. [2024-11-11 22:56:22,739 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 6817 transitions. Word has length 145 [2024-11-11 22:56:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 5794 states and 6817 transitions. [2024-11-11 22:56:22,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-11 22:56:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 6817 transitions. [2024-11-11 22:56:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-11 22:56:22,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:22,746 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:22,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-11 22:56:22,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:22,947 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:22,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:22,947 INFO L85 PathProgramCache]: Analyzing trace with hash 313711574, now seen corresponding path program 1 times [2024-11-11 22:56:22,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:22,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981774652] [2024-11-11 22:56:22,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:22,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:56:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:56:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-11 22:56:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 22:56:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 22:56:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 22:56:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-11 22:56:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 22:56:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-11 22:56:23,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981774652] [2024-11-11 22:56:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981774652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:23,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:23,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152818236] [2024-11-11 22:56:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:23,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:23,088 INFO L87 Difference]: Start difference. First operand 5794 states and 6817 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-11 22:56:24,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:24,132 INFO L93 Difference]: Finished difference Result 5868 states and 6895 transitions. [2024-11-11 22:56:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:56:24,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 140 [2024-11-11 22:56:24,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:24,147 INFO L225 Difference]: With dead ends: 5868 [2024-11-11 22:56:24,147 INFO L226 Difference]: Without dead ends: 4743 [2024-11-11 22:56:24,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:56:24,149 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 584 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:24,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 636 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:56:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2024-11-11 22:56:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 4743. [2024-11-11 22:56:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3754 states have (on average 1.1726158763985082) internal successors, (4402), 3790 states have internal predecessors, (4402), 477 states have call successors, (477), 396 states have call predecessors, (477), 511 states have return successors, (749), 556 states have call predecessors, (749), 476 states have call successors, (749) [2024-11-11 22:56:24,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 5628 transitions. [2024-11-11 22:56:24,625 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 5628 transitions. Word has length 140 [2024-11-11 22:56:24,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:24,625 INFO L471 AbstractCegarLoop]: Abstraction has 4743 states and 5628 transitions. [2024-11-11 22:56:24,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-11 22:56:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 5628 transitions. [2024-11-11 22:56:24,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-11 22:56:24,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:24,631 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:24,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 22:56:24,631 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:24,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash 299517924, now seen corresponding path program 1 times [2024-11-11 22:56:24,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24544851] [2024-11-11 22:56:24,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:56:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 22:56:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 22:56:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 22:56:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 22:56:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 22:56:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 22:56:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:24,714 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-11 22:56:24,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:24,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24544851] [2024-11-11 22:56:24,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24544851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:24,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:24,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:56:24,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685994698] [2024-11-11 22:56:24,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:24,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:56:24,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:24,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:56:24,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:56:24,716 INFO L87 Difference]: Start difference. First operand 4743 states and 5628 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-11 22:56:25,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:25,298 INFO L93 Difference]: Finished difference Result 5291 states and 6246 transitions. [2024-11-11 22:56:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:56:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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 147 [2024-11-11 22:56:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:25,313 INFO L225 Difference]: With dead ends: 5291 [2024-11-11 22:56:25,313 INFO L226 Difference]: Without dead ends: 4542 [2024-11-11 22:56:25,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:56:25,316 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 266 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:25,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 169 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 22:56:25,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2024-11-11 22:56:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4318. [2024-11-11 22:56:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4318 states, 3425 states have (on average 1.1743065693430657) internal successors, (4022), 3458 states have internal predecessors, (4022), 431 states have call successors, (431), 356 states have call predecessors, (431), 461 states have return successors, (685), 503 states have call predecessors, (685), 430 states have call successors, (685) [2024-11-11 22:56:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4318 states to 4318 states and 5138 transitions. [2024-11-11 22:56:25,778 INFO L78 Accepts]: Start accepts. Automaton has 4318 states and 5138 transitions. Word has length 147 [2024-11-11 22:56:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:25,778 INFO L471 AbstractCegarLoop]: Abstraction has 4318 states and 5138 transitions. [2024-11-11 22:56:25,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-11 22:56:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4318 states and 5138 transitions. [2024-11-11 22:56:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-11 22:56:25,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:25,784 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:25,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 22:56:25,784 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:25,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:25,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1372385945, now seen corresponding path program 1 times [2024-11-11 22:56:25,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70249265] [2024-11-11 22:56:25,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:25,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:56:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:56:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:56:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:56:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 22:56:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 22:56:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 22:56:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 22:56:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 22:56:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 22:56:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:56:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-11 22:56:25,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:25,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70249265] [2024-11-11 22:56:25,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70249265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:25,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823290850] [2024-11-11 22:56:25,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:25,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:25,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:25,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:25,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 22:56:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:26,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 22:56:26,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-11 22:56:26,150 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:56:26,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823290850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:26,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:56:26,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-11 22:56:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32939113] [2024-11-11 22:56:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:26,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 22:56:26,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:26,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 22:56:26,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:26,153 INFO L87 Difference]: Start difference. First operand 4318 states and 5138 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 22:56:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:26,474 INFO L93 Difference]: Finished difference Result 6154 states and 7298 transitions. [2024-11-11 22:56:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 22:56:26,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2024-11-11 22:56:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:26,490 INFO L225 Difference]: With dead ends: 6154 [2024-11-11 22:56:26,490 INFO L226 Difference]: Without dead ends: 2114 [2024-11-11 22:56:26,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:56:26,496 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 38 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:26,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 231 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:56:26,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2024-11-11 22:56:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2114. [2024-11-11 22:56:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 1691 states have (on average 1.1608515671200472) internal successors, (1963), 1708 states have internal predecessors, (1963), 202 states have call successors, (202), 168 states have call predecessors, (202), 220 states have return successors, (303), 237 states have call predecessors, (303), 201 states have call successors, (303) [2024-11-11 22:56:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2468 transitions. [2024-11-11 22:56:26,766 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2468 transitions. Word has length 158 [2024-11-11 22:56:26,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:26,767 INFO L471 AbstractCegarLoop]: Abstraction has 2114 states and 2468 transitions. [2024-11-11 22:56:26,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 22:56:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2468 transitions. [2024-11-11 22:56:26,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-11 22:56:26,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:26,769 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:26,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 22:56:26,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:26,971 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:26,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:26,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2131801496, now seen corresponding path program 1 times [2024-11-11 22:56:26,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:26,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220771321] [2024-11-11 22:56:26,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:26,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:56:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 22:56:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 22:56:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:56:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 22:56:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 22:56:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 22:56:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-11 22:56:27,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220771321] [2024-11-11 22:56:27,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220771321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:56:27,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:56:27,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:56:27,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991604094] [2024-11-11 22:56:27,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:56:27,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:56:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:56:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:56:27,077 INFO L87 Difference]: Start difference. First operand 2114 states and 2468 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 22:56:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:56:27,543 INFO L93 Difference]: Finished difference Result 3978 states and 4678 transitions. [2024-11-11 22:56:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:56:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-11 22:56:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:56:27,554 INFO L225 Difference]: With dead ends: 3978 [2024-11-11 22:56:27,555 INFO L226 Difference]: Without dead ends: 2217 [2024-11-11 22:56:27,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:56:27,557 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:56:27,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 431 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 22:56:27,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2024-11-11 22:56:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 1673. [2024-11-11 22:56:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1342 states have (on average 1.1669150521609537) internal successors, (1566), 1358 states have internal predecessors, (1566), 158 states have call successors, (158), 132 states have call predecessors, (158), 172 states have return successors, (235), 182 states have call predecessors, (235), 157 states have call successors, (235) [2024-11-11 22:56:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 1959 transitions. [2024-11-11 22:56:27,750 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 1959 transitions. Word has length 159 [2024-11-11 22:56:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:56:27,750 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 1959 transitions. [2024-11-11 22:56:27,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 22:56:27,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 1959 transitions. [2024-11-11 22:56:27,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-11 22:56:27,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:56:27,753 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:56:27,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-11 22:56:27,753 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:56:27,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:56:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash -601274853, now seen corresponding path program 1 times [2024-11-11 22:56:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:56:27,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974389464] [2024-11-11 22:56:27,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:56:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:56:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:56:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:56:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:56:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:56:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:56:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 22:56:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 22:56:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 22:56:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:56:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:56:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 22:56:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 22:56:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:56:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:27,964 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 22:56:27,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:56:27,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974389464] [2024-11-11 22:56:27,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974389464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:56:27,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936325957] [2024-11-11 22:56:27,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:56:27,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:56:27,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:56:27,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 22:56:27,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 22:56:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:56:28,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 22:56:28,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:56:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-11 22:56:28,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:56:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-11 22:56:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936325957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:56:28,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:56:28,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-11-11 22:56:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738731218] [2024-11-11 22:56:28,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:56:28,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 22:56:28,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:56:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 22:56:28,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:56:28,453 INFO L87 Difference]: Start difference. First operand 1673 states and 1959 transitions. Second operand has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35)