./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfe43dac9acec5d21450031b4b25696c02a17019cbc94a74a969e06371e0741b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:02:32,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:02:32,694 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 03:02:32,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:02:32,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:02:32,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:02:32,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:02:32,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:02:32,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:02:32,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:02:32,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:02:32,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:02:32,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:02:32,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:02:32,739 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:02:32,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:02:32,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:02:32,740 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 03:02:32,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:02:32,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 03:02:32,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:02:32,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:02:32,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:02:32,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:02:32,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:02:32,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 03:02:32,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:02:32,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:02:32,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:02:32,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:02:32,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:02:32,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:02:32,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:32,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:02:32,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:02:32,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:02:32,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:02:32,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:02:32,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:02:32,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:02:32,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:02:32,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:02:32,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe43dac9acec5d21450031b4b25696c02a17019cbc94a74a969e06371e0741b [2024-10-24 03:02:33,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:02:33,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:02:33,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:02:33,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:02:33,075 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:02:33,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c [2024-10-24 03:02:34,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:02:34,798 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:02:34,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c [2024-10-24 03:02:34,826 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33511311b/07612e585b53441f8705de68b5e99f37/FLAG79cdc415f [2024-10-24 03:02:34,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33511311b/07612e585b53441f8705de68b5e99f37 [2024-10-24 03:02:34,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:02:34,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:02:34,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:34,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:02:34,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:02:34,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:34" (1/1) ... [2024-10-24 03:02:34,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f626f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:34, skipping insertion in model container [2024-10-24 03:02:34,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:02:34" (1/1) ... [2024-10-24 03:02:34,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:02:35,113 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c[914,927] [2024-10-24 03:02:35,168 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c[7115,7128] [2024-10-24 03:02:35,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:35,286 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:02:35,297 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c[914,927] [2024-10-24 03:02:35,319 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.08.cil-2.c[7115,7128] [2024-10-24 03:02:35,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:02:35,401 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:02:35,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35 WrapperNode [2024-10-24 03:02:35,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:02:35,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:35,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:02:35,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:02:35,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,470 INFO L138 Inliner]: procedures = 69, calls = 82, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 834 [2024-10-24 03:02:35,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:02:35,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:02:35,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:02:35,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:02:35,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,518 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 03:02:35,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:02:35,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:02:35,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:02:35,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:02:35,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (1/1) ... [2024-10-24 03:02:35,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:02:35,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:35,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 03:02:35,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 03:02:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:02:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 03:02:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 03:02:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-10-24 03:02:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-10-24 03:02:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-24 03:02:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-24 03:02:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-24 03:02:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-24 03:02:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-10-24 03:02:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-10-24 03:02:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-24 03:02:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-24 03:02:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-24 03:02:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-24 03:02:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-10-24 03:02:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-10-24 03:02:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-10-24 03:02:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-10-24 03:02:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-10-24 03:02:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-10-24 03:02:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-24 03:02:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-24 03:02:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:02:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-24 03:02:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-24 03:02:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-10-24 03:02:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-10-24 03:02:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:02:35,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:02:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-24 03:02:35,686 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-24 03:02:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-10-24 03:02:35,686 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-10-24 03:02:35,828 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:02:35,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:02:36,786 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-24 03:02:36,787 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:02:36,867 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:02:36,870 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 03:02:36,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:36 BoogieIcfgContainer [2024-10-24 03:02:36,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:02:36,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:02:36,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:02:36,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:02:36,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:02:34" (1/3) ... [2024-10-24 03:02:36,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e020a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:36, skipping insertion in model container [2024-10-24 03:02:36,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:02:35" (2/3) ... [2024-10-24 03:02:36,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e020a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:02:36, skipping insertion in model container [2024-10-24 03:02:36,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:02:36" (3/3) ... [2024-10-24 03:02:36,878 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.08.cil-2.c [2024-10-24 03:02:36,895 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:02:36,895 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 03:02:36,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:02:36,983 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;@1c883a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:02:36,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 03:02:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 299 states have (on average 1.7023411371237458) internal successors, (509), 307 states have internal predecessors, (509), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 03:02:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:37,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:37,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:37,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:37,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:37,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1642674397, now seen corresponding path program 1 times [2024-10-24 03:02:37,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:37,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430384299] [2024-10-24 03:02:37,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:37,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:37,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430384299] [2024-10-24 03:02:37,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430384299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:37,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:37,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378041386] [2024-10-24 03:02:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:37,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:37,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:37,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:37,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:37,628 INFO L87 Difference]: Start difference. First operand has 355 states, 299 states have (on average 1.7023411371237458) internal successors, (509), 307 states have internal predecessors, (509), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:39,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:39,104 INFO L93 Difference]: Finished difference Result 813 states and 1329 transitions. [2024-10-24 03:02:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:02:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:39,130 INFO L225 Difference]: With dead ends: 813 [2024-10-24 03:02:39,131 INFO L226 Difference]: Without dead ends: 474 [2024-10-24 03:02:39,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:02:39,146 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 665 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:39,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1426 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:02:39,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-24 03:02:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 437. [2024-10-24 03:02:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 364 states have (on average 1.5631868131868132) internal successors, (569), 371 states have internal predecessors, (569), 49 states have call successors, (49), 22 states have call predecessors, (49), 22 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2024-10-24 03:02:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 668 transitions. [2024-10-24 03:02:39,271 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 668 transitions. Word has length 58 [2024-10-24 03:02:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:39,271 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 668 transitions. [2024-10-24 03:02:39,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 668 transitions. [2024-10-24 03:02:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:39,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:39,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:39,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:02:39,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:39,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1776908061, now seen corresponding path program 1 times [2024-10-24 03:02:39,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:39,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454560677] [2024-10-24 03:02:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:39,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:39,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454560677] [2024-10-24 03:02:39,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454560677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:39,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:39,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631662499] [2024-10-24 03:02:39,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:39,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:39,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:39,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:39,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:39,503 INFO L87 Difference]: Start difference. First operand 437 states and 668 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:40,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:40,742 INFO L93 Difference]: Finished difference Result 757 states and 1118 transitions. [2024-10-24 03:02:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:02:40,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-10-24 03:02:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:40,748 INFO L225 Difference]: With dead ends: 757 [2024-10-24 03:02:40,748 INFO L226 Difference]: Without dead ends: 595 [2024-10-24 03:02:40,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:02:40,750 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 1327 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:40,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 1396 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:02:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-10-24 03:02:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 525. [2024-10-24 03:02:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 432 states have (on average 1.5393518518518519) internal successors, (665), 441 states have internal predecessors, (665), 60 states have call successors, (60), 29 states have call predecessors, (60), 31 states have return successors, (69), 58 states have call predecessors, (69), 56 states have call successors, (69) [2024-10-24 03:02:40,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 794 transitions. [2024-10-24 03:02:40,802 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 794 transitions. Word has length 58 [2024-10-24 03:02:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:40,802 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 794 transitions. [2024-10-24 03:02:40,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 794 transitions. [2024-10-24 03:02:40,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:40,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:40,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:40,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:02:40,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:40,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash 151364641, now seen corresponding path program 1 times [2024-10-24 03:02:40,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:40,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791912144] [2024-10-24 03:02:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:40,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:40,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:41,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:41,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791912144] [2024-10-24 03:02:41,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791912144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:41,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:41,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:41,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209940434] [2024-10-24 03:02:41,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:41,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:41,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:41,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:41,009 INFO L87 Difference]: Start difference. First operand 525 states and 794 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:42,164 INFO L93 Difference]: Finished difference Result 799 states and 1180 transitions. [2024-10-24 03:02:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2024-10-24 03:02:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:42,170 INFO L225 Difference]: With dead ends: 799 [2024-10-24 03:02:42,170 INFO L226 Difference]: Without dead ends: 555 [2024-10-24 03:02:42,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:42,172 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 685 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:42,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1739 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:02:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-24 03:02:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 529. [2024-10-24 03:02:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 435 states have (on average 1.5310344827586206) internal successors, (666), 444 states have internal predecessors, (666), 60 states have call successors, (60), 29 states have call predecessors, (60), 32 states have return successors, (70), 59 states have call predecessors, (70), 56 states have call successors, (70) [2024-10-24 03:02:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 796 transitions. [2024-10-24 03:02:42,219 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 796 transitions. Word has length 58 [2024-10-24 03:02:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:42,219 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 796 transitions. [2024-10-24 03:02:42,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 796 transitions. [2024-10-24 03:02:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-24 03:02:42,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:42,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:42,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:02:42,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:42,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2092618657, now seen corresponding path program 1 times [2024-10-24 03:02:42,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:42,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048612879] [2024-10-24 03:02:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048612879] [2024-10-24 03:02:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048612879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:42,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:42,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 03:02:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265468295] [2024-10-24 03:02:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:42,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:02:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:02:42,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:02:42,413 INFO L87 Difference]: Start difference. First operand 529 states and 796 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-24 03:02:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:44,325 INFO L93 Difference]: Finished difference Result 1753 states and 2494 transitions. [2024-10-24 03:02:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-24 03:02:44,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 58 [2024-10-24 03:02:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:44,335 INFO L225 Difference]: With dead ends: 1753 [2024-10-24 03:02:44,335 INFO L226 Difference]: Without dead ends: 1487 [2024-10-24 03:02:44,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 03:02:44,338 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 2798 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:44,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 1883 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 03:02:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2024-10-24 03:02:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1364. [2024-10-24 03:02:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1084 states have (on average 1.419741697416974) internal successors, (1539), 1108 states have internal predecessors, (1539), 148 states have call successors, (148), 112 states have call predecessors, (148), 130 states have return successors, (184), 146 states have call predecessors, (184), 144 states have call successors, (184) [2024-10-24 03:02:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1871 transitions. [2024-10-24 03:02:44,469 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1871 transitions. Word has length 58 [2024-10-24 03:02:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:44,473 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 1871 transitions. [2024-10-24 03:02:44,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-24 03:02:44,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1871 transitions. [2024-10-24 03:02:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:44,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:44,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:44,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:02:44,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1187131728, now seen corresponding path program 1 times [2024-10-24 03:02:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600227702] [2024-10-24 03:02:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:44,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600227702] [2024-10-24 03:02:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600227702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:44,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:44,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:02:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417126418] [2024-10-24 03:02:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:44,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:02:44,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:02:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:02:44,631 INFO L87 Difference]: Start difference. First operand 1364 states and 1871 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:45,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:45,752 INFO L93 Difference]: Finished difference Result 2553 states and 3442 transitions. [2024-10-24 03:02:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:02:45,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 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 59 [2024-10-24 03:02:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:45,761 INFO L225 Difference]: With dead ends: 2553 [2024-10-24 03:02:45,761 INFO L226 Difference]: Without dead ends: 1458 [2024-10-24 03:02:45,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:02:45,766 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 464 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:45,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1954 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:02:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2024-10-24 03:02:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1388. [2024-10-24 03:02:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1102 states have (on average 1.4056261343012704) internal successors, (1549), 1126 states have internal predecessors, (1549), 148 states have call successors, (148), 112 states have call predecessors, (148), 136 states have return successors, (190), 152 states have call predecessors, (190), 144 states have call successors, (190) [2024-10-24 03:02:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1887 transitions. [2024-10-24 03:02:45,873 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1887 transitions. Word has length 59 [2024-10-24 03:02:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:45,874 INFO L471 AbstractCegarLoop]: Abstraction has 1388 states and 1887 transitions. [2024-10-24 03:02:45,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1887 transitions. [2024-10-24 03:02:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:45,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:45,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:45,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:02:45,877 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:45,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash 736096306, now seen corresponding path program 1 times [2024-10-24 03:02:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:45,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29404685] [2024-10-24 03:02:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:45,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29404685] [2024-10-24 03:02:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29404685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:46,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:46,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:46,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254725873] [2024-10-24 03:02:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:46,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:46,088 INFO L87 Difference]: Start difference. First operand 1388 states and 1887 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:47,242 INFO L93 Difference]: Finished difference Result 2538 states and 3329 transitions. [2024-10-24 03:02:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 03:02:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 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 59 [2024-10-24 03:02:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:47,251 INFO L225 Difference]: With dead ends: 2538 [2024-10-24 03:02:47,251 INFO L226 Difference]: Without dead ends: 1626 [2024-10-24 03:02:47,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-10-24 03:02:47,256 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 1061 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:47,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1418 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:02:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2024-10-24 03:02:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1333. [2024-10-24 03:02:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1063 states have (on average 1.4026340545625589) internal successors, (1491), 1082 states have internal predecessors, (1491), 142 states have call successors, (142), 107 states have call predecessors, (142), 126 states have return successors, (175), 145 states have call predecessors, (175), 138 states have call successors, (175) [2024-10-24 03:02:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1808 transitions. [2024-10-24 03:02:47,382 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1808 transitions. Word has length 59 [2024-10-24 03:02:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:47,383 INFO L471 AbstractCegarLoop]: Abstraction has 1333 states and 1808 transitions. [2024-10-24 03:02:47,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1808 transitions. [2024-10-24 03:02:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:02:47,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:47,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:47,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:02:47,388 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:47,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 954951024, now seen corresponding path program 1 times [2024-10-24 03:02:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:47,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248908719] [2024-10-24 03:02:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:47,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:47,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:47,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248908719] [2024-10-24 03:02:47,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248908719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:47,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:02:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043955346] [2024-10-24 03:02:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:47,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:02:47,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:02:47,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:02:47,523 INFO L87 Difference]: Start difference. First operand 1333 states and 1808 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:48,401 INFO L93 Difference]: Finished difference Result 3482 states and 4579 transitions. [2024-10-24 03:02:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 03:02:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 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 59 [2024-10-24 03:02:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:48,417 INFO L225 Difference]: With dead ends: 3482 [2024-10-24 03:02:48,417 INFO L226 Difference]: Without dead ends: 2419 [2024-10-24 03:02:48,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:48,423 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1561 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:48,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 747 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:48,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-10-24 03:02:48,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2303. [2024-10-24 03:02:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 1790 states have (on average 1.335195530726257) internal successors, (2390), 1826 states have internal predecessors, (2390), 261 states have call successors, (261), 206 states have call predecessors, (261), 250 states have return successors, (366), 273 states have call predecessors, (366), 257 states have call successors, (366) [2024-10-24 03:02:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3017 transitions. [2024-10-24 03:02:48,634 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3017 transitions. Word has length 59 [2024-10-24 03:02:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:48,635 INFO L471 AbstractCegarLoop]: Abstraction has 2303 states and 3017 transitions. [2024-10-24 03:02:48,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 03:02:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3017 transitions. [2024-10-24 03:02:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:02:48,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:48,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:48,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:02:48,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:48,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 221499874, now seen corresponding path program 1 times [2024-10-24 03:02:48,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:48,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413900268] [2024-10-24 03:02:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:48,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:48,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:48,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413900268] [2024-10-24 03:02:48,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413900268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:48,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:48,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:48,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176903119] [2024-10-24 03:02:48,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:48,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:48,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:48,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:48,737 INFO L87 Difference]: Start difference. First operand 2303 states and 3017 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:49,585 INFO L93 Difference]: Finished difference Result 5355 states and 6898 transitions. [2024-10-24 03:02:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-10-24 03:02:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:49,605 INFO L225 Difference]: With dead ends: 5355 [2024-10-24 03:02:49,605 INFO L226 Difference]: Without dead ends: 3327 [2024-10-24 03:02:49,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:02:49,611 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 899 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:49,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 951 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-10-24 03:02:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3069. [2024-10-24 03:02:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 2370 states have (on average 1.3151898734177214) internal successors, (3117), 2411 states have internal predecessors, (3117), 353 states have call successors, (353), 286 states have call predecessors, (353), 344 states have return successors, (480), 374 states have call predecessors, (480), 349 states have call successors, (480) [2024-10-24 03:02:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 3950 transitions. [2024-10-24 03:02:49,901 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 3950 transitions. Word has length 60 [2024-10-24 03:02:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:49,902 INFO L471 AbstractCegarLoop]: Abstraction has 3069 states and 3950 transitions. [2024-10-24 03:02:49,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 3950 transitions. [2024-10-24 03:02:49,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 03:02:49,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:49,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:49,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:02:49,904 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:49,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:49,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1574263521, now seen corresponding path program 1 times [2024-10-24 03:02:49,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:49,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918044734] [2024-10-24 03:02:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:49,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:49,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:49,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918044734] [2024-10-24 03:02:49,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918044734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:49,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:49,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874001388] [2024-10-24 03:02:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:49,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:49,993 INFO L87 Difference]: Start difference. First operand 3069 states and 3950 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:50,831 INFO L93 Difference]: Finished difference Result 6633 states and 8416 transitions. [2024-10-24 03:02:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:02:50,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-10-24 03:02:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:50,852 INFO L225 Difference]: With dead ends: 6633 [2024-10-24 03:02:50,852 INFO L226 Difference]: Without dead ends: 3837 [2024-10-24 03:02:50,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:02:50,860 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1007 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:50,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1014 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:02:50,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3837 states. [2024-10-24 03:02:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3837 to 3573. [2024-10-24 03:02:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2760 states have (on average 1.3068840579710146) internal successors, (3607), 2805 states have internal predecessors, (3607), 409 states have call successors, (409), 336 states have call predecessors, (409), 402 states have return successors, (553), 434 states have call predecessors, (553), 405 states have call successors, (553) [2024-10-24 03:02:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4569 transitions. [2024-10-24 03:02:51,178 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4569 transitions. Word has length 66 [2024-10-24 03:02:51,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:51,179 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 4569 transitions. [2024-10-24 03:02:51,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 03:02:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4569 transitions. [2024-10-24 03:02:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 03:02:51,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:51,181 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:51,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:02:51,182 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:51,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:51,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1040856206, now seen corresponding path program 1 times [2024-10-24 03:02:51,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:51,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516703973] [2024-10-24 03:02:51,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:51,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:51,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:51,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516703973] [2024-10-24 03:02:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516703973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:51,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:51,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:02:51,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473582662] [2024-10-24 03:02:51,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:51,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:02:51,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:51,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:02:51,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:02:51,291 INFO L87 Difference]: Start difference. First operand 3573 states and 4569 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:52,269 INFO L93 Difference]: Finished difference Result 4581 states and 5786 transitions. [2024-10-24 03:02:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 03:02:52,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2024-10-24 03:02:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:52,289 INFO L225 Difference]: With dead ends: 4581 [2024-10-24 03:02:52,290 INFO L226 Difference]: Without dead ends: 4578 [2024-10-24 03:02:52,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-10-24 03:02:52,292 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 1773 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:52,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 764 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:02:52,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2024-10-24 03:02:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 3993. [2024-10-24 03:02:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 3073 states have (on average 1.2954767328343637) internal successors, (3981), 3121 states have internal predecessors, (3981), 459 states have call successors, (459), 380 states have call predecessors, (459), 459 states have return successors, (630), 494 states have call predecessors, (630), 456 states have call successors, (630) [2024-10-24 03:02:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 5070 transitions. [2024-10-24 03:02:52,686 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 5070 transitions. Word has length 67 [2024-10-24 03:02:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:52,688 INFO L471 AbstractCegarLoop]: Abstraction has 3993 states and 5070 transitions. [2024-10-24 03:02:52,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 5070 transitions. [2024-10-24 03:02:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 03:02:52,690 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:52,690 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:52,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:02:52,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:52,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:52,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2094372661, now seen corresponding path program 1 times [2024-10-24 03:02:52,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:52,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906965127] [2024-10-24 03:02:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:52,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:52,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:52,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906965127] [2024-10-24 03:02:52,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906965127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:02:52,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778601301] [2024-10-24 03:02:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:52,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:02:52,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:02:52,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:02:52,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:02:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:52,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:02:52,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:02:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:53,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:02:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:53,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778601301] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:02:53,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:02:53,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-10-24 03:02:53,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406851094] [2024-10-24 03:02:53,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:02:53,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 03:02:53,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 03:02:53,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 03:02:53,325 INFO L87 Difference]: Start difference. First operand 3993 states and 5070 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:02:55,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:55,328 INFO L93 Difference]: Finished difference Result 7965 states and 9933 transitions. [2024-10-24 03:02:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 03:02:55,329 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2024-10-24 03:02:55,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:55,368 INFO L225 Difference]: With dead ends: 7965 [2024-10-24 03:02:55,368 INFO L226 Difference]: Without dead ends: 7962 [2024-10-24 03:02:55,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-10-24 03:02:55,372 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 1457 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:55,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1997 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:02:55,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-10-24 03:02:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7110. [2024-10-24 03:02:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7110 states, 5448 states have (on average 1.2782672540381792) internal successors, (6964), 5531 states have internal predecessors, (6964), 818 states have call successors, (818), 694 states have call predecessors, (818), 842 states have return successors, (1131), 887 states have call predecessors, (1131), 815 states have call successors, (1131) [2024-10-24 03:02:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7110 states to 7110 states and 8913 transitions. [2024-10-24 03:02:56,127 INFO L78 Accepts]: Start accepts. Automaton has 7110 states and 8913 transitions. Word has length 68 [2024-10-24 03:02:56,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:56,127 INFO L471 AbstractCegarLoop]: Abstraction has 7110 states and 8913 transitions. [2024-10-24 03:02:56,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-10-24 03:02:56,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7110 states and 8913 transitions. [2024-10-24 03:02:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 03:02:56,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:56,130 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:56,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 03:02:56,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 03:02:56,331 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:56,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1832774066, now seen corresponding path program 2 times [2024-10-24 03:02:56,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:56,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955484027] [2024-10-24 03:02:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:56,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955484027] [2024-10-24 03:02:56,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955484027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:56,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:56,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:02:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420033185] [2024-10-24 03:02:56,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:56,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:02:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:02:56,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:02:56,416 INFO L87 Difference]: Start difference. First operand 7110 states and 8913 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:57,461 INFO L93 Difference]: Finished difference Result 9498 states and 11916 transitions. [2024-10-24 03:02:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 03:02:57,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2024-10-24 03:02:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:57,483 INFO L225 Difference]: With dead ends: 9498 [2024-10-24 03:02:57,484 INFO L226 Difference]: Without dead ends: 3860 [2024-10-24 03:02:57,497 INFO L431 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 [2024-10-24 03:02:57,498 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 955 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:57,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 1053 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:02:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2024-10-24 03:02:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 2924. [2024-10-24 03:02:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2268 states have (on average 1.2861552028218695) internal successors, (2917), 2297 states have internal predecessors, (2917), 337 states have call successors, (337), 276 states have call predecessors, (337), 317 states have return successors, (430), 353 states have call predecessors, (430), 334 states have call successors, (430) [2024-10-24 03:02:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3684 transitions. [2024-10-24 03:02:57,865 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3684 transitions. Word has length 71 [2024-10-24 03:02:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:57,866 INFO L471 AbstractCegarLoop]: Abstraction has 2924 states and 3684 transitions. [2024-10-24 03:02:57,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-10-24 03:02:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3684 transitions. [2024-10-24 03:02:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 03:02:57,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:57,868 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:02:57,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:02:57,868 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -760462493, now seen corresponding path program 1 times [2024-10-24 03:02:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13246257] [2024-10-24 03:02:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:02:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:02:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:02:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:02:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:02:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:02:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:02:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:02:57,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:57,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13246257] [2024-10-24 03:02:57,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13246257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:57,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:57,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 03:02:57,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068346686] [2024-10-24 03:02:57,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:57,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:02:57,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:57,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:02:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:02:57,995 INFO L87 Difference]: Start difference. First operand 2924 states and 3684 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:02:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:59,413 INFO L93 Difference]: Finished difference Result 8242 states and 10215 transitions. [2024-10-24 03:02:59,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 03:02:59,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-10-24 03:02:59,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:59,434 INFO L225 Difference]: With dead ends: 8242 [2024-10-24 03:02:59,434 INFO L226 Difference]: Without dead ends: 4852 [2024-10-24 03:02:59,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-24 03:02:59,449 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 1198 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:59,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1268 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:02:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2024-10-24 03:03:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4592. [2024-10-24 03:03:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 3501 states have (on average 1.2479291630962581) internal successors, (4369), 3567 states have internal predecessors, (4369), 537 states have call successors, (537), 448 states have call predecessors, (537), 552 states have return successors, (780), 579 states have call predecessors, (780), 534 states have call successors, (780) [2024-10-24 03:03:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 5686 transitions. [2024-10-24 03:03:00,264 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 5686 transitions. Word has length 76 [2024-10-24 03:03:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:00,265 INFO L471 AbstractCegarLoop]: Abstraction has 4592 states and 5686 transitions. [2024-10-24 03:03:00,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 5686 transitions. [2024-10-24 03:03:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 03:03:00,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:00,270 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:00,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:03:00,270 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:00,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1653971837, now seen corresponding path program 1 times [2024-10-24 03:03:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:00,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71275999] [2024-10-24 03:03:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:00,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 03:03:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:03:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71275999] [2024-10-24 03:03:00,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71275999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:00,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:00,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 03:03:00,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547667123] [2024-10-24 03:03:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:00,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 03:03:00,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 03:03:00,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:00,436 INFO L87 Difference]: Start difference. First operand 4592 states and 5686 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:01,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:01,934 INFO L93 Difference]: Finished difference Result 7682 states and 9434 transitions. [2024-10-24 03:03:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 03:03:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-10-24 03:03:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:01,967 INFO L225 Difference]: With dead ends: 7682 [2024-10-24 03:03:01,967 INFO L226 Difference]: Without dead ends: 3839 [2024-10-24 03:03:01,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-10-24 03:03:01,979 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 2185 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:01,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 1263 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:03:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2024-10-24 03:03:02,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3435. [2024-10-24 03:03:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3435 states, 2610 states have (on average 1.236015325670498) internal successors, (3226), 2664 states have internal predecessors, (3226), 402 states have call successors, (402), 330 states have call predecessors, (402), 421 states have return successors, (549), 443 states have call predecessors, (549), 399 states have call successors, (549) [2024-10-24 03:03:02,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4177 transitions. [2024-10-24 03:03:02,431 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4177 transitions. Word has length 86 [2024-10-24 03:03:02,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:02,432 INFO L471 AbstractCegarLoop]: Abstraction has 3435 states and 4177 transitions. [2024-10-24 03:03:02,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 03:03:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4177 transitions. [2024-10-24 03:03:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 03:03:02,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:02,435 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:02,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:03:02,436 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:02,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:02,436 INFO L85 PathProgramCache]: Analyzing trace with hash -879376531, now seen corresponding path program 1 times [2024-10-24 03:03:02,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:02,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156982165] [2024-10-24 03:03:02,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:02,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 03:03:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-24 03:03:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 03:03:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:03:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 03:03:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 03:03:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 03:03:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 03:03:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 03:03:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 03:03:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 03:03:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 03:03:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 03:03:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-24 03:03:02,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156982165] [2024-10-24 03:03:02,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156982165] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:03:02,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246126340] [2024-10-24 03:03:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:02,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:03:02,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:03:02,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 03:03:02,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:03:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:02,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:03:02,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:03:02,791 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 03:03:02,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:03:02,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246126340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:02,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:03:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-10-24 03:03:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550833949] [2024-10-24 03:03:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:02,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:02,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:02,797 INFO L87 Difference]: Start difference. First operand 3435 states and 4177 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 03:03:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:03,083 INFO L93 Difference]: Finished difference Result 5026 states and 6085 transitions. [2024-10-24 03:03:03,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:03:03,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2024-10-24 03:03:03,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:03,095 INFO L225 Difference]: With dead ends: 5026 [2024-10-24 03:03:03,095 INFO L226 Difference]: Without dead ends: 1866 [2024-10-24 03:03:03,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 03:03:03,106 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 0 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:03,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2488 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:03:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-10-24 03:03:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2024-10-24 03:03:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1487 states have (on average 1.2595830531271015) internal successors, (1873), 1504 states have internal predecessors, (1873), 191 states have call successors, (191), 144 states have call predecessors, (191), 186 states have return successors, (256), 218 states have call predecessors, (256), 188 states have call successors, (256) [2024-10-24 03:03:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2320 transitions. [2024-10-24 03:03:03,283 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2320 transitions. Word has length 131 [2024-10-24 03:03:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:03,284 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2320 transitions. [2024-10-24 03:03:03,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 03:03:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2320 transitions. [2024-10-24 03:03:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:03,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:03,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:03,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 03:03:03,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-24 03:03:03,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash 550923923, now seen corresponding path program 1 times [2024-10-24 03:03:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860720877] [2024-10-24 03:03:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:03,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:03,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:03,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860720877] [2024-10-24 03:03:03,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860720877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:03,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:03,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:03:03,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106523825] [2024-10-24 03:03:03,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:03,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:03:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:03:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:03:03,629 INFO L87 Difference]: Start difference. First operand 1866 states and 2320 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:04,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:04,882 INFO L93 Difference]: Finished difference Result 2208 states and 2885 transitions. [2024-10-24 03:03:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:04,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:04,889 INFO L225 Difference]: With dead ends: 2208 [2024-10-24 03:03:04,889 INFO L226 Difference]: Without dead ends: 1956 [2024-10-24 03:03:04,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 03:03:04,891 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 796 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:04,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 695 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:03:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2024-10-24 03:03:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1866. [2024-10-24 03:03:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1487 states have (on average 1.2589105581708138) internal successors, (1872), 1504 states have internal predecessors, (1872), 191 states have call successors, (191), 144 states have call predecessors, (191), 186 states have return successors, (256), 218 states have call predecessors, (256), 188 states have call successors, (256) [2024-10-24 03:03:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2319 transitions. [2024-10-24 03:03:05,191 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2319 transitions. Word has length 122 [2024-10-24 03:03:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:05,191 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2319 transitions. [2024-10-24 03:03:05,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2319 transitions. [2024-10-24 03:03:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:05,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:05,194 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:05,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:03:05,194 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:05,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2096680431, now seen corresponding path program 1 times [2024-10-24 03:03:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897617256] [2024-10-24 03:03:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:05,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:05,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897617256] [2024-10-24 03:03:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897617256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:03:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125733789] [2024-10-24 03:03:05,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:05,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:03:05,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:03:05,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:03:05,361 INFO L87 Difference]: Start difference. First operand 1866 states and 2319 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:07,518 INFO L93 Difference]: Finished difference Result 2551 states and 3453 transitions. [2024-10-24 03:03:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:03:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:07,527 INFO L225 Difference]: With dead ends: 2551 [2024-10-24 03:03:07,527 INFO L226 Difference]: Without dead ends: 2304 [2024-10-24 03:03:07,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:07,530 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 1257 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:07,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1007 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 03:03:07,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2024-10-24 03:03:07,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2123. [2024-10-24 03:03:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 1720 states have (on average 1.3104651162790697) internal successors, (2254), 1738 states have internal predecessors, (2254), 208 states have call successors, (208), 150 states have call predecessors, (208), 193 states have return successors, (276), 235 states have call predecessors, (276), 205 states have call successors, (276) [2024-10-24 03:03:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2738 transitions. [2024-10-24 03:03:07,869 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2738 transitions. Word has length 122 [2024-10-24 03:03:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:07,869 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 2738 transitions. [2024-10-24 03:03:07,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2738 transitions. [2024-10-24 03:03:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:07,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:07,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:07,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:03:07,872 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:07,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1922361553, now seen corresponding path program 1 times [2024-10-24 03:03:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:07,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553353187] [2024-10-24 03:03:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:07,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:07,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:08,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:08,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553353187] [2024-10-24 03:03:08,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553353187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:08,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:08,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:08,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181615019] [2024-10-24 03:03:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:08,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:08,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:08,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:08,065 INFO L87 Difference]: Start difference. First operand 2123 states and 2738 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:10,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:10,810 INFO L93 Difference]: Finished difference Result 3166 states and 4463 transitions. [2024-10-24 03:03:10,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:10,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:10,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:10,818 INFO L225 Difference]: With dead ends: 3166 [2024-10-24 03:03:10,819 INFO L226 Difference]: Without dead ends: 2662 [2024-10-24 03:03:10,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:10,821 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 1274 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:10,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1792 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2024-10-24 03:03:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2361. [2024-10-24 03:03:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 1934 states have (on average 1.343329886246122) internal successors, (2598), 1953 states have internal predecessors, (2598), 225 states have call successors, (225), 156 states have call predecessors, (225), 200 states have return successors, (295), 253 states have call predecessors, (295), 222 states have call successors, (295) [2024-10-24 03:03:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 3118 transitions. [2024-10-24 03:03:11,170 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 3118 transitions. Word has length 122 [2024-10-24 03:03:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:11,170 INFO L471 AbstractCegarLoop]: Abstraction has 2361 states and 3118 transitions. [2024-10-24 03:03:11,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 3118 transitions. [2024-10-24 03:03:11,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:11,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:11,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:11,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:03:11,173 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:11,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash -983311729, now seen corresponding path program 1 times [2024-10-24 03:03:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:11,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494411977] [2024-10-24 03:03:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:11,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:11,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494411977] [2024-10-24 03:03:11,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494411977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:11,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:11,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871615536] [2024-10-24 03:03:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:11,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:11,366 INFO L87 Difference]: Start difference. First operand 2361 states and 3118 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:14,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:14,162 INFO L93 Difference]: Finished difference Result 4067 states and 5935 transitions. [2024-10-24 03:03:14,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:14,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:14,175 INFO L225 Difference]: With dead ends: 4067 [2024-10-24 03:03:14,175 INFO L226 Difference]: Without dead ends: 3325 [2024-10-24 03:03:14,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:14,180 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1278 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2896 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:14,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1790 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2896 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2024-10-24 03:03:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 2838. [2024-10-24 03:03:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2363 states have (on average 1.3910283537875583) internal successors, (3287), 2384 states have internal predecessors, (3287), 259 states have call successors, (259), 168 states have call predecessors, (259), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:14,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3883 transitions. [2024-10-24 03:03:14,583 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3883 transitions. Word has length 122 [2024-10-24 03:03:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:14,583 INFO L471 AbstractCegarLoop]: Abstraction has 2838 states and 3883 transitions. [2024-10-24 03:03:14,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3883 transitions. [2024-10-24 03:03:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:14,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:14,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:14,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:03:14,593 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:14,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1278261521, now seen corresponding path program 1 times [2024-10-24 03:03:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:14,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616401964] [2024-10-24 03:03:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:14,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:14,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:14,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616401964] [2024-10-24 03:03:14,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616401964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:14,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:14,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:14,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558048721] [2024-10-24 03:03:14,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:14,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:14,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:14,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:14,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:14,791 INFO L87 Difference]: Start difference. First operand 2838 states and 3883 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:16,315 INFO L93 Difference]: Finished difference Result 4528 states and 6683 transitions. [2024-10-24 03:03:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:16,329 INFO L225 Difference]: With dead ends: 4528 [2024-10-24 03:03:16,329 INFO L226 Difference]: Without dead ends: 3309 [2024-10-24 03:03:16,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:16,334 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1140 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:16,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 850 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-10-24 03:03:16,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2838. [2024-10-24 03:03:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2363 states have (on average 1.388912399492171) internal successors, (3282), 2384 states have internal predecessors, (3282), 259 states have call successors, (259), 168 states have call predecessors, (259), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3878 transitions. [2024-10-24 03:03:16,837 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3878 transitions. Word has length 122 [2024-10-24 03:03:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:16,838 INFO L471 AbstractCegarLoop]: Abstraction has 2838 states and 3878 transitions. [2024-10-24 03:03:16,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3878 transitions. [2024-10-24 03:03:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:16,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:16,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:16,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:03:16,842 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:16,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:16,842 INFO L85 PathProgramCache]: Analyzing trace with hash -28880877, now seen corresponding path program 1 times [2024-10-24 03:03:16,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:16,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26113832] [2024-10-24 03:03:16,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:16,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:16,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:17,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:17,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26113832] [2024-10-24 03:03:17,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26113832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:17,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:17,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:17,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890340449] [2024-10-24 03:03:17,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:17,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:17,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:17,057 INFO L87 Difference]: Start difference. First operand 2838 states and 3878 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:18,772 INFO L93 Difference]: Finished difference Result 4522 states and 6656 transitions. [2024-10-24 03:03:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:18,783 INFO L225 Difference]: With dead ends: 4522 [2024-10-24 03:03:18,783 INFO L226 Difference]: Without dead ends: 3303 [2024-10-24 03:03:18,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:18,788 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 982 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:18,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1022 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 03:03:18,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2024-10-24 03:03:19,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 2838. [2024-10-24 03:03:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2363 states have (on average 1.3867964451967838) internal successors, (3277), 2384 states have internal predecessors, (3277), 259 states have call successors, (259), 168 states have call predecessors, (259), 214 states have return successors, (337), 289 states have call predecessors, (337), 256 states have call successors, (337) [2024-10-24 03:03:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 3873 transitions. [2024-10-24 03:03:19,211 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 3873 transitions. Word has length 122 [2024-10-24 03:03:19,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:19,211 INFO L471 AbstractCegarLoop]: Abstraction has 2838 states and 3873 transitions. [2024-10-24 03:03:19,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 3873 transitions. [2024-10-24 03:03:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:19,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:19,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:19,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:03:19,215 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:19,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:19,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1868615889, now seen corresponding path program 1 times [2024-10-24 03:03:19,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:19,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010290005] [2024-10-24 03:03:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:19,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010290005] [2024-10-24 03:03:19,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010290005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091966568] [2024-10-24 03:03:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:19,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:19,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:19,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:19,400 INFO L87 Difference]: Start difference. First operand 2838 states and 3873 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:21,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:21,975 INFO L93 Difference]: Finished difference Result 5781 states and 8672 transitions. [2024-10-24 03:03:21,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:21,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:21,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:21,990 INFO L225 Difference]: With dead ends: 5781 [2024-10-24 03:03:21,990 INFO L226 Difference]: Without dead ends: 4562 [2024-10-24 03:03:21,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:21,996 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1260 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:21,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1790 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2024-10-24 03:03:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 3808. [2024-10-24 03:03:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3237 states have (on average 1.4423849243126352) internal successors, (4669), 3262 states have internal predecessors, (4669), 327 states have call successors, (327), 192 states have call predecessors, (327), 242 states have return successors, (427), 361 states have call predecessors, (427), 324 states have call successors, (427) [2024-10-24 03:03:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5423 transitions. [2024-10-24 03:03:22,560 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5423 transitions. Word has length 122 [2024-10-24 03:03:22,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:22,560 INFO L471 AbstractCegarLoop]: Abstraction has 3808 states and 5423 transitions. [2024-10-24 03:03:22,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5423 transitions. [2024-10-24 03:03:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:22,564 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:22,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:22,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:03:22,566 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:22,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1395310509, now seen corresponding path program 1 times [2024-10-24 03:03:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:22,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687909941] [2024-10-24 03:03:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:22,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:22,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687909941] [2024-10-24 03:03:22,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687909941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:22,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:22,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:22,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569853680] [2024-10-24 03:03:22,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:22,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:22,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:22,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:22,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:22,734 INFO L87 Difference]: Start difference. First operand 3808 states and 5423 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:24,313 INFO L93 Difference]: Finished difference Result 6758 states and 10263 transitions. [2024-10-24 03:03:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:03:24,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:24,330 INFO L225 Difference]: With dead ends: 6758 [2024-10-24 03:03:24,330 INFO L226 Difference]: Without dead ends: 4569 [2024-10-24 03:03:24,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 03:03:24,337 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 981 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:24,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1022 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:03:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2024-10-24 03:03:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 3808. [2024-10-24 03:03:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3237 states have (on average 1.4396045721346926) internal successors, (4660), 3262 states have internal predecessors, (4660), 327 states have call successors, (327), 192 states have call predecessors, (327), 242 states have return successors, (427), 361 states have call predecessors, (427), 324 states have call successors, (427) [2024-10-24 03:03:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5414 transitions. [2024-10-24 03:03:25,056 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5414 transitions. Word has length 122 [2024-10-24 03:03:25,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:25,056 INFO L471 AbstractCegarLoop]: Abstraction has 3808 states and 5414 transitions. [2024-10-24 03:03:25,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:25,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5414 transitions. [2024-10-24 03:03:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:25,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:25,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:25,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:03:25,060 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:25,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash 993253521, now seen corresponding path program 1 times [2024-10-24 03:03:25,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:25,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845575339] [2024-10-24 03:03:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:25,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845575339] [2024-10-24 03:03:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845575339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:25,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:25,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548284958] [2024-10-24 03:03:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:25,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:25,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:25,234 INFO L87 Difference]: Start difference. First operand 3808 states and 5414 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:27,963 INFO L93 Difference]: Finished difference Result 9235 states and 14216 transitions. [2024-10-24 03:03:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:03:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:27,985 INFO L225 Difference]: With dead ends: 9235 [2024-10-24 03:03:27,985 INFO L226 Difference]: Without dead ends: 7046 [2024-10-24 03:03:27,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 03:03:27,993 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1252 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:27,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1790 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 03:03:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7046 states. [2024-10-24 03:03:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7046 to 5758. [2024-10-24 03:03:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 4995 states have (on average 1.4902902902902904) internal successors, (7444), 5028 states have internal predecessors, (7444), 463 states have call successors, (463), 240 states have call predecessors, (463), 298 states have return successors, (625), 505 states have call predecessors, (625), 460 states have call successors, (625) [2024-10-24 03:03:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 8532 transitions. [2024-10-24 03:03:28,610 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 8532 transitions. Word has length 122 [2024-10-24 03:03:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:28,610 INFO L471 AbstractCegarLoop]: Abstraction has 5758 states and 8532 transitions. [2024-10-24 03:03:28,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:28,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 8532 transitions. [2024-10-24 03:03:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:28,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:28,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:28,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:03:28,616 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:28,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:28,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1700642669, now seen corresponding path program 1 times [2024-10-24 03:03:28,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:28,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326293068] [2024-10-24 03:03:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:28,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:28,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:28,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326293068] [2024-10-24 03:03:28,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326293068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:28,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:28,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:28,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598173807] [2024-10-24 03:03:28,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:28,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:28,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:28,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:28,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:28,792 INFO L87 Difference]: Start difference. First operand 5758 states and 8532 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:32,172 INFO L93 Difference]: Finished difference Result 17823 states and 28110 transitions. [2024-10-24 03:03:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:32,208 INFO L225 Difference]: With dead ends: 17823 [2024-10-24 03:03:32,208 INFO L226 Difference]: Without dead ends: 13684 [2024-10-24 03:03:32,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:32,224 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1325 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 3247 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:32,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1783 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3247 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:03:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13684 states. [2024-10-24 03:03:33,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13684 to 9639. [2024-10-24 03:03:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9639 states, 8508 states have (on average 1.5296191819464033) internal successors, (13014), 8557 states have internal predecessors, (13014), 719 states have call successors, (719), 336 states have call predecessors, (719), 410 states have return successors, (1059), 777 states have call predecessors, (1059), 716 states have call successors, (1059) [2024-10-24 03:03:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9639 states to 9639 states and 14792 transitions. [2024-10-24 03:03:33,126 INFO L78 Accepts]: Start accepts. Automaton has 9639 states and 14792 transitions. Word has length 122 [2024-10-24 03:03:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:33,126 INFO L471 AbstractCegarLoop]: Abstraction has 9639 states and 14792 transitions. [2024-10-24 03:03:33,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 9639 states and 14792 transitions. [2024-10-24 03:03:33,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:33,133 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:33,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:33,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:03:33,133 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:33,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:33,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1537593425, now seen corresponding path program 1 times [2024-10-24 03:03:33,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:33,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683865417] [2024-10-24 03:03:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:33,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:33,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683865417] [2024-10-24 03:03:33,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683865417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:33,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:33,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3764950] [2024-10-24 03:03:33,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:33,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:33,303 INFO L87 Difference]: Start difference. First operand 9639 states and 14792 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:37,099 INFO L93 Difference]: Finished difference Result 32886 states and 52692 transitions. [2024-10-24 03:03:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:37,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:37,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:37,162 INFO L225 Difference]: With dead ends: 32886 [2024-10-24 03:03:37,162 INFO L226 Difference]: Without dead ends: 24866 [2024-10-24 03:03:37,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:37,185 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1514 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:37,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 1779 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 03:03:37,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24866 states. [2024-10-24 03:03:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24866 to 17080. [2024-10-24 03:03:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17080 states, 15229 states have (on average 1.5502002757896118) internal successors, (23608), 15310 states have internal predecessors, (23608), 1215 states have call successors, (1215), 528 states have call predecessors, (1215), 634 states have return successors, (2073), 1305 states have call predecessors, (2073), 1212 states have call successors, (2073) [2024-10-24 03:03:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17080 states to 17080 states and 26896 transitions. [2024-10-24 03:03:38,693 INFO L78 Accepts]: Start accepts. Automaton has 17080 states and 26896 transitions. Word has length 122 [2024-10-24 03:03:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:03:38,693 INFO L471 AbstractCegarLoop]: Abstraction has 17080 states and 26896 transitions. [2024-10-24 03:03:38,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 17080 states and 26896 transitions. [2024-10-24 03:03:38,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 03:03:38,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:03:38,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:03:38,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:03:38,705 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:03:38,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:03:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1405988653, now seen corresponding path program 1 times [2024-10-24 03:03:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:03:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024254961] [2024-10-24 03:03:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:03:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:03:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:03:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 03:03:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:03:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 03:03:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 03:03:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:03:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:03:38,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:03:38,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024254961] [2024-10-24 03:03:38,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024254961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:03:38,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:03:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:03:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763888476] [2024-10-24 03:03:38,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:03:38,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:03:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:03:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:03:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:03:38,878 INFO L87 Difference]: Start difference. First operand 17080 states and 26896 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 03:03:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:03:44,226 INFO L93 Difference]: Finished difference Result 60771 states and 98662 transitions. [2024-10-24 03:03:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:03:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-10-24 03:03:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:03:44,391 INFO L225 Difference]: With dead ends: 60771 [2024-10-24 03:03:44,391 INFO L226 Difference]: Without dead ends: 45310 [2024-10-24 03:03:44,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:03:44,443 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1440 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 2808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:03:44,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1783 Invalid, 2808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 03:03:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45310 states.