./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.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce176716d91d866602a372020396224af9fcf4c5f81c6adcdcc0f1d83b0d658f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:09:45,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:09:45,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:09:45,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:09:45,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:09:45,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:09:45,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:09:45,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:09:45,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:09:45,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:09:45,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:09:45,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:09:45,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:09:45,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:09:45,341 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:09:45,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:09:45,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:09:45,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:09:45,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:09:45,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:09:45,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:09:45,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:09:45,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:09:45,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:09:45,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:09:45,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:09:45,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:09:45,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:09:45,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:09:45,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:09:45,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:09:45,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:09:45,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:09:45,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:09:45,348 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:09:45,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:09:45,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:09:45,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce176716d91d866602a372020396224af9fcf4c5f81c6adcdcc0f1d83b0d658f [2024-11-20 00:09:45,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:09:45,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:09:45,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:09:45,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:09:45,565 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:09:45,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2024-11-20 00:09:46,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:09:47,112 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:09:47,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2024-11-20 00:09:47,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63b273598/efe0995fc71d433e8ddec8e2a59d4480/FLAG06bfecd81 [2024-11-20 00:09:47,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63b273598/efe0995fc71d433e8ddec8e2a59d4480 [2024-11-20 00:09:47,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:09:47,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:09:47,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:09:47,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:09:47,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:09:47,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc9d934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47, skipping insertion in model container [2024-11-20 00:09:47,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:09:47,363 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[914,927] [2024-11-20 00:09:47,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[7115,7128] [2024-11-20 00:09:47,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:09:47,563 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:09:47,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[914,927] [2024-11-20 00:09:47,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[7115,7128] [2024-11-20 00:09:47,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:09:47,719 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:09:47,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47 WrapperNode [2024-11-20 00:09:47,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:09:47,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:09:47,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:09:47,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:09:47,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,781 INFO L138 Inliner]: procedures = 79, calls = 97, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1134 [2024-11-20 00:09:47,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:09:47,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:09:47,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:09:47,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:09:47,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,814 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 00:09:47,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:09:47,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:09:47,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:09:47,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:09:47,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (1/1) ... [2024-11-20 00:09:47,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:09:47,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:09:47,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 00:09:47,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 00:09:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:09:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:09:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:09:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-20 00:09:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-20 00:09:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:09:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:09:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:09:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:09:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-20 00:09:47,924 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-20 00:09:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:09:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:09:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:09:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:09:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-20 00:09:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-20 00:09:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-20 00:09:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-20 00:09:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:09:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:09:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-20 00:09:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-20 00:09:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:09:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:09:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:09:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:09:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-20 00:09:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-20 00:09:48,041 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:09:48,043 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:09:48,953 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2024-11-20 00:09:48,954 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:09:48,985 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:09:48,985 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-20 00:09:48,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:48 BoogieIcfgContainer [2024-11-20 00:09:48,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:09:48,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:09:48,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:09:48,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:09:48,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:09:47" (1/3) ... [2024-11-20 00:09:48,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf8fb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:48, skipping insertion in model container [2024-11-20 00:09:48,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:09:47" (2/3) ... [2024-11-20 00:09:48,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf8fb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:09:48, skipping insertion in model container [2024-11-20 00:09:48,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:09:48" (3/3) ... [2024-11-20 00:09:48,993 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2024-11-20 00:09:49,007 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:09:49,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:09:49,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:09:49,083 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;@4c1572ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:09:49,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:09:49,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 530 states, 469 states have (on average 1.628997867803838) internal successors, (764), 477 states have internal predecessors, (764), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-20 00:09:49,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:09:49,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:49,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:49,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:49,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:49,105 INFO L85 PathProgramCache]: Analyzing trace with hash 778583530, now seen corresponding path program 1 times [2024-11-20 00:09:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031938176] [2024-11-20 00:09:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:49,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:49,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031938176] [2024-11-20 00:09:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031938176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:49,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:09:49,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080127541] [2024-11-20 00:09:49,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:49,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:09:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:49,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:09:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:09:49,639 INFO L87 Difference]: Start difference. First operand has 530 states, 469 states have (on average 1.628997867803838) internal successors, (764), 477 states have internal predecessors, (764), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:09:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:51,025 INFO L93 Difference]: Finished difference Result 1165 states and 1856 transitions. [2024-11-20 00:09:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:09:51,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:09:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:51,040 INFO L225 Difference]: With dead ends: 1165 [2024-11-20 00:09:51,040 INFO L226 Difference]: Without dead ends: 654 [2024-11-20 00:09:51,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:09:51,049 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 908 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:51,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 2758 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:09:51,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-20 00:09:51,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 615. [2024-11-20 00:09:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 537 states have (on average 1.5214152700186219) internal successors, (817), 544 states have internal predecessors, (817), 54 states have call successors, (54), 22 states have call predecessors, (54), 22 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2024-11-20 00:09:51,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 926 transitions. [2024-11-20 00:09:51,143 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 926 transitions. Word has length 65 [2024-11-20 00:09:51,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:51,144 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 926 transitions. [2024-11-20 00:09:51,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:09:51,144 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 926 transitions. [2024-11-20 00:09:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:09:51,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:51,147 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:51,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:09:51,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:51,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:51,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1837495126, now seen corresponding path program 1 times [2024-11-20 00:09:51,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:51,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955566949] [2024-11-20 00:09:51,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:51,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:51,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:51,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955566949] [2024-11-20 00:09:51,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955566949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:51,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:51,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:09:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770537401] [2024-11-20 00:09:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:51,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:09:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:09:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:09:51,319 INFO L87 Difference]: Start difference. First operand 615 states and 926 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:52,494 INFO L93 Difference]: Finished difference Result 827 states and 1217 transitions. [2024-11-20 00:09:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:09:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-20 00:09:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:52,501 INFO L225 Difference]: With dead ends: 827 [2024-11-20 00:09:52,502 INFO L226 Difference]: Without dead ends: 650 [2024-11-20 00:09:52,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:09:52,506 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 692 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:52,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 3197 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:09:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-20 00:09:52,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 620. [2024-11-20 00:09:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 541 states have (on average 1.5157116451016637) internal successors, (820), 548 states have internal predecessors, (820), 54 states have call successors, (54), 22 states have call predecessors, (54), 23 states have return successors, (56), 52 states have call predecessors, (56), 50 states have call successors, (56) [2024-11-20 00:09:52,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 930 transitions. [2024-11-20 00:09:52,541 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 930 transitions. Word has length 65 [2024-11-20 00:09:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:52,541 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 930 transitions. [2024-11-20 00:09:52,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 930 transitions. [2024-11-20 00:09:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:09:52,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:52,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:52,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:09:52,544 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:52,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1428112872, now seen corresponding path program 1 times [2024-11-20 00:09:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:52,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636896815] [2024-11-20 00:09:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:52,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:52,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:52,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636896815] [2024-11-20 00:09:52,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636896815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:52,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:52,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:09:52,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255640991] [2024-11-20 00:09:52,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:52,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:09:52,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:09:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:09:52,730 INFO L87 Difference]: Start difference. First operand 620 states and 930 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:09:54,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:54,540 INFO L93 Difference]: Finished difference Result 1794 states and 2522 transitions. [2024-11-20 00:09:54,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 00:09:54,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-20 00:09:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:54,547 INFO L225 Difference]: With dead ends: 1794 [2024-11-20 00:09:54,548 INFO L226 Difference]: Without dead ends: 1612 [2024-11-20 00:09:54,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 00:09:54,550 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 3220 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:54,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 2424 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:09:54,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-20 00:09:54,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1370. [2024-11-20 00:09:54,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1134 states have (on average 1.4162257495590829) internal successors, (1606), 1151 states have internal predecessors, (1606), 132 states have call successors, (132), 90 states have call predecessors, (132), 102 states have return successors, (169), 131 states have call predecessors, (169), 128 states have call successors, (169) [2024-11-20 00:09:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1907 transitions. [2024-11-20 00:09:54,641 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1907 transitions. Word has length 65 [2024-11-20 00:09:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:54,642 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1907 transitions. [2024-11-20 00:09:54,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-20 00:09:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1907 transitions. [2024-11-20 00:09:54,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:09:54,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:54,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:54,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:09:54,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:54,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1815405335, now seen corresponding path program 1 times [2024-11-20 00:09:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:54,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743103691] [2024-11-20 00:09:54,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:54,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:54,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:54,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743103691] [2024-11-20 00:09:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743103691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:54,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:54,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:09:54,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046411085] [2024-11-20 00:09:54,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:54,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:09:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:09:54,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:09:54,805 INFO L87 Difference]: Start difference. First operand 1370 states and 1907 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:55,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:55,964 INFO L93 Difference]: Finished difference Result 2496 states and 3394 transitions. [2024-11-20 00:09:55,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:09:55,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-20 00:09:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:55,972 INFO L225 Difference]: With dead ends: 2496 [2024-11-20 00:09:55,972 INFO L226 Difference]: Without dead ends: 1564 [2024-11-20 00:09:55,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:09:55,977 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 1033 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:55,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2826 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:09:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-20 00:09:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1400. [2024-11-20 00:09:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1158 states have (on average 1.4024179620034543) internal successors, (1624), 1175 states have internal predecessors, (1624), 132 states have call successors, (132), 90 states have call predecessors, (132), 108 states have return successors, (177), 137 states have call predecessors, (177), 128 states have call successors, (177) [2024-11-20 00:09:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1933 transitions. [2024-11-20 00:09:56,053 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1933 transitions. Word has length 65 [2024-11-20 00:09:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:56,053 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 1933 transitions. [2024-11-20 00:09:56,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1933 transitions. [2024-11-20 00:09:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-20 00:09:56,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:56,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:56,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:09:56,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:56,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:56,055 INFO L85 PathProgramCache]: Analyzing trace with hash -429201941, now seen corresponding path program 1 times [2024-11-20 00:09:56,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:56,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709107055] [2024-11-20 00:09:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:56,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:56,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709107055] [2024-11-20 00:09:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709107055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:56,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059908277] [2024-11-20 00:09:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:56,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:56,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:56,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:56,168 INFO L87 Difference]: Start difference. First operand 1400 states and 1933 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:09:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:56,948 INFO L93 Difference]: Finished difference Result 3588 states and 4768 transitions. [2024-11-20 00:09:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 00:09:56,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-20 00:09:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:56,958 INFO L225 Difference]: With dead ends: 3588 [2024-11-20 00:09:56,959 INFO L226 Difference]: Without dead ends: 2628 [2024-11-20 00:09:56,963 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 [2024-11-20 00:09:56,964 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 2284 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:56,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 1212 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:09:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2024-11-20 00:09:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2324. [2024-11-20 00:09:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 1875 states have (on average 1.3456) internal successors, (2523), 1906 states have internal predecessors, (2523), 234 states have call successors, (234), 172 states have call predecessors, (234), 213 states have return successors, (358), 250 states have call predecessors, (358), 230 states have call successors, (358) [2024-11-20 00:09:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3115 transitions. [2024-11-20 00:09:57,104 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3115 transitions. Word has length 65 [2024-11-20 00:09:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:57,106 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3115 transitions. [2024-11-20 00:09:57,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:09:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3115 transitions. [2024-11-20 00:09:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 00:09:57,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:57,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:57,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:09:57,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:57,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 262059244, now seen corresponding path program 1 times [2024-11-20 00:09:57,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:57,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458847051] [2024-11-20 00:09:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:57,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:57,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:57,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458847051] [2024-11-20 00:09:57,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458847051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:57,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:57,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:09:57,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054568923] [2024-11-20 00:09:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:57,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:09:57,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:09:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:09:57,177 INFO L87 Difference]: Start difference. First operand 2324 states and 3115 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:58,111 INFO L93 Difference]: Finished difference Result 6092 states and 8026 transitions. [2024-11-20 00:09:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:09:58,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-20 00:09:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:58,130 INFO L225 Difference]: With dead ends: 6092 [2024-11-20 00:09:58,130 INFO L226 Difference]: Without dead ends: 4194 [2024-11-20 00:09:58,136 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 [2024-11-20 00:09:58,138 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 876 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:58,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1965 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:09:58,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2024-11-20 00:09:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3700. [2024-11-20 00:09:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2928 states have (on average 1.3155737704918034) internal successors, (3852), 2969 states have internal predecessors, (3852), 392 states have call successors, (392), 308 states have call predecessors, (392), 378 states have return successors, (631), 427 states have call predecessors, (631), 388 states have call successors, (631) [2024-11-20 00:09:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 4875 transitions. [2024-11-20 00:09:58,345 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 4875 transitions. Word has length 66 [2024-11-20 00:09:58,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:58,346 INFO L471 AbstractCegarLoop]: Abstraction has 3700 states and 4875 transitions. [2024-11-20 00:09:58,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:09:58,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 4875 transitions. [2024-11-20 00:09:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-20 00:09:58,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:58,348 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:58,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:09:58,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:58,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash 73739401, now seen corresponding path program 1 times [2024-11-20 00:09:58,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:58,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404836904] [2024-11-20 00:09:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:58,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404836904] [2024-11-20 00:09:58,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404836904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:09:58,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:09:58,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:09:58,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417306703] [2024-11-20 00:09:58,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:09:58,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:09:58,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:09:58,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:09:58,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:09:58,444 INFO L87 Difference]: Start difference. First operand 3700 states and 4875 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:09:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:09:59,338 INFO L93 Difference]: Finished difference Result 4996 states and 6475 transitions. [2024-11-20 00:09:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 00:09:59,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-20 00:09:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:09:59,358 INFO L225 Difference]: With dead ends: 4996 [2024-11-20 00:09:59,358 INFO L226 Difference]: Without dead ends: 4993 [2024-11-20 00:09:59,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:09:59,362 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 2277 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:09:59,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 1611 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:09:59,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-20 00:09:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4436. [2024-11-20 00:09:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 3491 states have (on average 1.301059868232598) internal successors, (4542), 3541 states have internal predecessors, (4542), 476 states have call successors, (476), 384 states have call predecessors, (476), 467 states have return successors, (765), 515 states have call predecessors, (765), 473 states have call successors, (765) [2024-11-20 00:09:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 5783 transitions. [2024-11-20 00:09:59,654 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 5783 transitions. Word has length 73 [2024-11-20 00:09:59,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:09:59,655 INFO L471 AbstractCegarLoop]: Abstraction has 4436 states and 5783 transitions. [2024-11-20 00:09:59,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:09:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 5783 transitions. [2024-11-20 00:09:59,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 00:09:59,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:09:59,659 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:09:59,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:09:59,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:09:59,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:09:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2010594219, now seen corresponding path program 1 times [2024-11-20 00:09:59,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:09:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470824251] [2024-11-20 00:09:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:59,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:09:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:09:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:09:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:09:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:09:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:09:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:09:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:09:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:09:59,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:09:59,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470824251] [2024-11-20 00:09:59,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470824251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:09:59,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136331823] [2024-11-20 00:09:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:09:59,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:09:59,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:09:59,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:09:59,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 00:09:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:09:59,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:09:59,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:10:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:00,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:10:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:00,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136331823] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:10:00,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:10:00,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-20 00:10:00,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896284935] [2024-11-20 00:10:00,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:10:00,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 00:10:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 00:10:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:10:00,272 INFO L87 Difference]: Start difference. First operand 4436 states and 5783 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 00:10:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:02,238 INFO L93 Difference]: Finished difference Result 10324 states and 13158 transitions. [2024-11-20 00:10:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 00:10:02,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-20 00:10:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:02,279 INFO L225 Difference]: With dead ends: 10324 [2024-11-20 00:10:02,281 INFO L226 Difference]: Without dead ends: 10321 [2024-11-20 00:10:02,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-20 00:10:02,287 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 3089 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3159 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:02,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3159 Valid, 2680 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:10:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2024-11-20 00:10:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 8320. [2024-11-20 00:10:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8320 states, 6509 states have (on average 1.2837609463819326) internal successors, (8356), 6599 states have internal predecessors, (8356), 890 states have call successors, (890), 740 states have call predecessors, (890), 919 states have return successors, (1459), 985 states have call predecessors, (1459), 887 states have call successors, (1459) [2024-11-20 00:10:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8320 states to 8320 states and 10705 transitions. [2024-11-20 00:10:02,853 INFO L78 Accepts]: Start accepts. Automaton has 8320 states and 10705 transitions. Word has length 74 [2024-11-20 00:10:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:02,856 INFO L471 AbstractCegarLoop]: Abstraction has 8320 states and 10705 transitions. [2024-11-20 00:10:02,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-20 00:10:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8320 states and 10705 transitions. [2024-11-20 00:10:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 00:10:02,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:02,859 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:02,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 00:10:03,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:03,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1734280695, now seen corresponding path program 2 times [2024-11-20 00:10:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:03,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086564207] [2024-11-20 00:10:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:03,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:03,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:03,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086564207] [2024-11-20 00:10:03,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086564207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:03,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:03,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:10:03,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528544313] [2024-11-20 00:10:03,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:03,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:10:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:03,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:10:03,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:10:03,122 INFO L87 Difference]: Start difference. First operand 8320 states and 10705 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:10:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:04,111 INFO L93 Difference]: Finished difference Result 12993 states and 16698 transitions. [2024-11-20 00:10:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:10:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-20 00:10:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:04,137 INFO L225 Difference]: With dead ends: 12993 [2024-11-20 00:10:04,137 INFO L226 Difference]: Without dead ends: 5703 [2024-11-20 00:10:04,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:10:04,158 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 1425 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:04,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 1699 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:10:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2024-11-20 00:10:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 5169. [2024-11-20 00:10:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 4096 states have (on average 1.27197265625) internal successors, (5210), 4142 states have internal predecessors, (5210), 541 states have call successors, (541), 440 states have call predecessors, (541), 530 states have return successors, (818), 591 states have call predecessors, (818), 538 states have call successors, (818) [2024-11-20 00:10:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 6569 transitions. [2024-11-20 00:10:04,536 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 6569 transitions. Word has length 77 [2024-11-20 00:10:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:04,537 INFO L471 AbstractCegarLoop]: Abstraction has 5169 states and 6569 transitions. [2024-11-20 00:10:04,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:10:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 6569 transitions. [2024-11-20 00:10:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 00:10:04,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:04,539 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:04,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:10:04,540 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:04,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:04,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1609122361, now seen corresponding path program 1 times [2024-11-20 00:10:04,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:04,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888411258] [2024-11-20 00:10:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:04,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 00:10:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 00:10:04,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:04,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888411258] [2024-11-20 00:10:04,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888411258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:04,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:04,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:10:04,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339734256] [2024-11-20 00:10:04,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:04,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:10:04,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:04,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:10:04,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:10:04,657 INFO L87 Difference]: Start difference. First operand 5169 states and 6569 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:10:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:06,157 INFO L93 Difference]: Finished difference Result 15217 states and 19102 transitions. [2024-11-20 00:10:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 00:10:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-20 00:10:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:06,189 INFO L225 Difference]: With dead ends: 15217 [2024-11-20 00:10:06,190 INFO L226 Difference]: Without dead ends: 10498 [2024-11-20 00:10:06,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-20 00:10:06,201 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1906 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:06,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 2079 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:10:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10498 states. [2024-11-20 00:10:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10498 to 9551. [2024-11-20 00:10:07,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9551 states, 7432 states have (on average 1.2370828848223896) internal successors, (9194), 7554 states have internal predecessors, (9194), 1037 states have call successors, (1037), 852 states have call predecessors, (1037), 1080 states have return successors, (1805), 1153 states have call predecessors, (1805), 1034 states have call successors, (1805) [2024-11-20 00:10:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9551 states to 9551 states and 12036 transitions. [2024-11-20 00:10:07,072 INFO L78 Accepts]: Start accepts. Automaton has 9551 states and 12036 transitions. Word has length 84 [2024-11-20 00:10:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:07,072 INFO L471 AbstractCegarLoop]: Abstraction has 9551 states and 12036 transitions. [2024-11-20 00:10:07,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:10:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9551 states and 12036 transitions. [2024-11-20 00:10:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 00:10:07,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:07,077 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:07,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:10:07,077 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1227969209, now seen corresponding path program 1 times [2024-11-20 00:10:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247941506] [2024-11-20 00:10:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 00:10:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 00:10:07,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:07,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247941506] [2024-11-20 00:10:07,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247941506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:07,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:07,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:10:07,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786113151] [2024-11-20 00:10:07,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:07,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:10:07,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:07,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:10:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:10:07,206 INFO L87 Difference]: Start difference. First operand 9551 states and 12036 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:10:08,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:08,892 INFO L93 Difference]: Finished difference Result 18993 states and 23640 transitions. [2024-11-20 00:10:08,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 00:10:08,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-20 00:10:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:08,931 INFO L225 Difference]: With dead ends: 18993 [2024-11-20 00:10:08,931 INFO L226 Difference]: Without dead ends: 10310 [2024-11-20 00:10:08,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-20 00:10:08,951 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 3050 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:08,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 2091 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:10:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2024-11-20 00:10:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 9386. [2024-11-20 00:10:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9386 states, 7311 states have (on average 1.2206264532895637) internal successors, (8924), 7435 states have internal predecessors, (8924), 1009 states have call successors, (1009), 838 states have call predecessors, (1009), 1064 states have return successors, (1639), 1119 states have call predecessors, (1639), 1006 states have call successors, (1639) [2024-11-20 00:10:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9386 states to 9386 states and 11572 transitions. [2024-11-20 00:10:09,592 INFO L78 Accepts]: Start accepts. Automaton has 9386 states and 11572 transitions. Word has length 93 [2024-11-20 00:10:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:09,593 INFO L471 AbstractCegarLoop]: Abstraction has 9386 states and 11572 transitions. [2024-11-20 00:10:09,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 00:10:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9386 states and 11572 transitions. [2024-11-20 00:10:09,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 00:10:09,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:09,604 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:09,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:10:09,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:09,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868437, now seen corresponding path program 1 times [2024-11-20 00:10:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:09,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657488957] [2024-11-20 00:10:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:09,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 00:10:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 00:10:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 00:10:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 00:10:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:10:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 00:10:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:10:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 00:10:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657488957] [2024-11-20 00:10:09,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657488957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:10:09,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796813077] [2024-11-20 00:10:09,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:09,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:09,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:10:09,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:10:09,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 00:10:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:09,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 00:10:09,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:10:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-20 00:10:09,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:10:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796813077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:09,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:10:09,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-20 00:10:09,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359808114] [2024-11-20 00:10:09,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:09,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:10:09,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:09,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:10:09,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:10:09,895 INFO L87 Difference]: Start difference. First operand 9386 states and 11572 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 00:10:10,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:10,184 INFO L93 Difference]: Finished difference Result 13503 states and 16533 transitions. [2024-11-20 00:10:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:10:10,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-20 00:10:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:10,202 INFO L225 Difference]: With dead ends: 13503 [2024-11-20 00:10:10,202 INFO L226 Difference]: Without dead ends: 4575 [2024-11-20 00:10:10,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:10:10,217 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 0 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:10,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3936 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:10:10,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2024-11-20 00:10:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4423. [2024-11-20 00:10:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 3560 states have (on average 1.2269662921348314) internal successors, (4368), 3597 states have internal predecessors, (4368), 424 states have call successors, (424), 332 states have call predecessors, (424), 437 states have return successors, (651), 494 states have call predecessors, (651), 421 states have call successors, (651) [2024-11-20 00:10:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 5443 transitions. [2024-11-20 00:10:10,453 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 5443 transitions. Word has length 145 [2024-11-20 00:10:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:10,454 INFO L471 AbstractCegarLoop]: Abstraction has 4423 states and 5443 transitions. [2024-11-20 00:10:10,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 00:10:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 5443 transitions. [2024-11-20 00:10:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 00:10:10,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:10,460 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:10,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 00:10:10,664 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,SelfDestructingSolverStorable11 [2024-11-20 00:10:10,664 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:10,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:10,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1229740519, now seen corresponding path program 1 times [2024-11-20 00:10:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:10,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199149009] [2024-11-20 00:10:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:10,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 00:10:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-20 00:10:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-20 00:10:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 00:10:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 00:10:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-20 00:10:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-20 00:10:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-20 00:10:10,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:10,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199149009] [2024-11-20 00:10:10,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199149009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:10,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:10,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:10:10,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034317028] [2024-11-20 00:10:10,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:10,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:10:10,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:10,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:10:10,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:10:10,759 INFO L87 Difference]: Start difference. First operand 4423 states and 5443 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 00:10:11,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:11,448 INFO L93 Difference]: Finished difference Result 4886 states and 5961 transitions. [2024-11-20 00:10:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:11,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-20 00:10:11,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:11,467 INFO L225 Difference]: With dead ends: 4886 [2024-11-20 00:10:11,467 INFO L226 Difference]: Without dead ends: 4354 [2024-11-20 00:10:11,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:10:11,471 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1137 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:11,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1515 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:10:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2024-11-20 00:10:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4112. [2024-11-20 00:10:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 3321 states have (on average 1.2306534176452875) internal successors, (4087), 3354 states have internal predecessors, (4087), 390 states have call successors, (390), 302 states have call predecessors, (390), 399 states have return successors, (604), 456 states have call predecessors, (604), 387 states have call successors, (604) [2024-11-20 00:10:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 5081 transitions. [2024-11-20 00:10:11,887 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 5081 transitions. Word has length 147 [2024-11-20 00:10:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:11,888 INFO L471 AbstractCegarLoop]: Abstraction has 4112 states and 5081 transitions. [2024-11-20 00:10:11,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-20 00:10:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 5081 transitions. [2024-11-20 00:10:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-20 00:10:11,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:11,896 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:11,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:10:11,896 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:11,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash -622782922, now seen corresponding path program 1 times [2024-11-20 00:10:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571790951] [2024-11-20 00:10:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:11,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:10:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 00:10:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:10:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:10:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 00:10:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-20 00:10:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:10:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-20 00:10:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-20 00:10:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 00:10:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:10:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:10:12,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:12,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571790951] [2024-11-20 00:10:12,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571790951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:10:12,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203437248] [2024-11-20 00:10:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:12,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:12,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:10:12,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:10:12,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 00:10:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:12,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 00:10:12,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:10:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-20 00:10:12,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:10:12,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203437248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:12,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:10:12,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-20 00:10:12,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901570616] [2024-11-20 00:10:12,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:12,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:10:12,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:12,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:10:12,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:10:12,264 INFO L87 Difference]: Start difference. First operand 4112 states and 5081 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:10:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:12,544 INFO L93 Difference]: Finished difference Result 5687 states and 6946 transitions. [2024-11-20 00:10:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:10:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 158 [2024-11-20 00:10:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:12,558 INFO L225 Difference]: With dead ends: 5687 [2024-11-20 00:10:12,558 INFO L226 Difference]: Without dead ends: 2209 [2024-11-20 00:10:12,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:10:12,566 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 699 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:12,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 892 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:10:12,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-11-20 00:10:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 1973. [2024-11-20 00:10:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1633 states have (on average 1.2657685241886099) internal successors, (2067), 1649 states have internal predecessors, (2067), 173 states have call successors, (173), 125 states have call predecessors, (173), 165 states have return successors, (246), 199 states have call predecessors, (246), 170 states have call successors, (246) [2024-11-20 00:10:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2486 transitions. [2024-11-20 00:10:12,762 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2486 transitions. Word has length 158 [2024-11-20 00:10:12,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:12,762 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2486 transitions. [2024-11-20 00:10:12,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:10:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2486 transitions. [2024-11-20 00:10:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-20 00:10:12,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:12,767 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:12,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 00:10:12,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:12,968 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:12,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash -825958447, now seen corresponding path program 1 times [2024-11-20 00:10:12,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:12,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924780514] [2024-11-20 00:10:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:12,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 00:10:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:10:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-20 00:10:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 00:10:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-20 00:10:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 00:10:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 00:10:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-20 00:10:13,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:13,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924780514] [2024-11-20 00:10:13,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924780514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:13,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:13,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098296434] [2024-11-20 00:10:13,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:13,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:13,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:13,103 INFO L87 Difference]: Start difference. First operand 1973 states and 2486 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 00:10:14,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:14,166 INFO L93 Difference]: Finished difference Result 3551 states and 4356 transitions. [2024-11-20 00:10:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:10:14,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-20 00:10:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:14,180 INFO L225 Difference]: With dead ends: 3551 [2024-11-20 00:10:14,180 INFO L226 Difference]: Without dead ends: 2258 [2024-11-20 00:10:14,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:10:14,184 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 1061 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:14,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 2023 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 00:10:14,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-11-20 00:10:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2062. [2024-11-20 00:10:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1699 states have (on average 1.261330194231901) internal successors, (2143), 1718 states have internal predecessors, (2143), 185 states have call successors, (185), 137 states have call predecessors, (185), 176 states have return successors, (260), 207 states have call predecessors, (260), 182 states have call successors, (260) [2024-11-20 00:10:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2588 transitions. [2024-11-20 00:10:14,370 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2588 transitions. Word has length 159 [2024-11-20 00:10:14,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:14,371 INFO L471 AbstractCegarLoop]: Abstraction has 2062 states and 2588 transitions. [2024-11-20 00:10:14,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-20 00:10:14,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2588 transitions. [2024-11-20 00:10:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-20 00:10:14,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:14,374 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:14,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:10:14,374 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:14,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:14,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1136712456, now seen corresponding path program 1 times [2024-11-20 00:10:14,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489155994] [2024-11-20 00:10:14,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 00:10:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 00:10:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 00:10:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 00:10:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 00:10:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:10:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 00:10:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 00:10:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:10:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 00:10:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 00:10:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 00:10:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489155994] [2024-11-20 00:10:14,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489155994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:10:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910769097] [2024-11-20 00:10:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:14,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:14,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:10:14,586 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:10:14,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 00:10:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:14,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 00:10:14,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:10:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-20 00:10:14,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:10:14,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910769097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:14,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:10:14,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-20 00:10:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527355065] [2024-11-20 00:10:14,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:14,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:10:14,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:10:14,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:10:14,839 INFO L87 Difference]: Start difference. First operand 2062 states and 2588 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:10:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:15,487 INFO L93 Difference]: Finished difference Result 4657 states and 5704 transitions. [2024-11-20 00:10:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:10:15,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 162 [2024-11-20 00:10:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:15,495 INFO L225 Difference]: With dead ends: 4657 [2024-11-20 00:10:15,495 INFO L226 Difference]: Without dead ends: 2915 [2024-11-20 00:10:15,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-20 00:10:15,497 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 399 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:15,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1236 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:10:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2024-11-20 00:10:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2885. [2024-11-20 00:10:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2885 states, 2378 states have (on average 1.2165685449957948) internal successors, (2893), 2403 states have internal predecessors, (2893), 255 states have call successors, (255), 189 states have call predecessors, (255), 250 states have return successors, (372), 293 states have call predecessors, (372), 252 states have call successors, (372) [2024-11-20 00:10:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 3520 transitions. [2024-11-20 00:10:15,660 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 3520 transitions. Word has length 162 [2024-11-20 00:10:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:15,661 INFO L471 AbstractCegarLoop]: Abstraction has 2885 states and 3520 transitions. [2024-11-20 00:10:15,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:10:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 3520 transitions. [2024-11-20 00:10:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-20 00:10:15,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:15,665 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:15,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 00:10:15,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 00:10:15,869 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:15,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:15,869 INFO L85 PathProgramCache]: Analyzing trace with hash -431287319, now seen corresponding path program 1 times [2024-11-20 00:10:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582097776] [2024-11-20 00:10:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:15,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 00:10:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 00:10:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:10:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:10:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 00:10:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:10:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-20 00:10:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 00:10:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 00:10:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 00:10:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:10:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:10:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-20 00:10:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:10:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-20 00:10:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:15,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582097776] [2024-11-20 00:10:15,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582097776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:10:15,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849150822] [2024-11-20 00:10:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:15,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:10:15,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:10:15,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:10:15,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 00:10:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:16,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 00:10:16,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:10:16,111 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-20 00:10:16,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:10:16,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849150822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:16,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:10:16,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-20 00:10:16,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096827595] [2024-11-20 00:10:16,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:16,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:10:16,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:16,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:10:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:10:16,112 INFO L87 Difference]: Start difference. First operand 2885 states and 3520 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 00:10:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:16,665 INFO L93 Difference]: Finished difference Result 5252 states and 6274 transitions. [2024-11-20 00:10:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-20 00:10:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:16,679 INFO L225 Difference]: With dead ends: 5252 [2024-11-20 00:10:16,679 INFO L226 Difference]: Without dead ends: 2640 [2024-11-20 00:10:16,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 00:10:16,684 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 1073 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:16,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1203 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:10:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2024-11-20 00:10:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2466. [2024-11-20 00:10:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2053 states have (on average 1.2245494398441306) internal successors, (2514), 2073 states have internal predecessors, (2514), 209 states have call successors, (209), 149 states have call predecessors, (209), 202 states have return successors, (292), 244 states have call predecessors, (292), 206 states have call successors, (292) [2024-11-20 00:10:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3015 transitions. [2024-11-20 00:10:16,828 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3015 transitions. Word has length 179 [2024-11-20 00:10:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:16,828 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3015 transitions. [2024-11-20 00:10:16,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-20 00:10:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3015 transitions. [2024-11-20 00:10:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:16,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:16,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:16,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 00:10:17,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 00:10:17,032 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:17,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2029088811, now seen corresponding path program 1 times [2024-11-20 00:10:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:17,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68487537] [2024-11-20 00:10:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:17,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:17,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68487537] [2024-11-20 00:10:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68487537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:17,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:10:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079732489] [2024-11-20 00:10:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:17,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:10:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:10:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:10:17,200 INFO L87 Difference]: Start difference. First operand 2466 states and 3015 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:10:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:18,954 INFO L93 Difference]: Finished difference Result 3036 states and 3933 transitions. [2024-11-20 00:10:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:18,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:18,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:18,962 INFO L225 Difference]: With dead ends: 3036 [2024-11-20 00:10:18,962 INFO L226 Difference]: Without dead ends: 2619 [2024-11-20 00:10:18,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:10:18,963 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 1239 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:18,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 1091 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:10:18,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2024-11-20 00:10:19,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2466. [2024-11-20 00:10:19,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2053 states have (on average 1.2240623477837311) internal successors, (2513), 2073 states have internal predecessors, (2513), 209 states have call successors, (209), 149 states have call predecessors, (209), 202 states have return successors, (292), 244 states have call predecessors, (292), 206 states have call successors, (292) [2024-11-20 00:10:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3014 transitions. [2024-11-20 00:10:19,243 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3014 transitions. Word has length 190 [2024-11-20 00:10:19,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:19,244 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3014 transitions. [2024-11-20 00:10:19,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:10:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3014 transitions. [2024-11-20 00:10:19,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:19,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:19,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:19,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:10:19,246 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:19,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash -680955241, now seen corresponding path program 1 times [2024-11-20 00:10:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736704411] [2024-11-20 00:10:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:19,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:19,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:19,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736704411] [2024-11-20 00:10:19,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736704411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:19,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:19,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:10:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318281053] [2024-11-20 00:10:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:19,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:10:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:10:19,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:10:19,400 INFO L87 Difference]: Start difference. First operand 2466 states and 3014 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:10:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:21,346 INFO L93 Difference]: Finished difference Result 3028 states and 3916 transitions. [2024-11-20 00:10:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:21,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:21,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:21,356 INFO L225 Difference]: With dead ends: 3028 [2024-11-20 00:10:21,356 INFO L226 Difference]: Without dead ends: 2619 [2024-11-20 00:10:21,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:10:21,357 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1230 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:21,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1089 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:10:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2024-11-20 00:10:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2466. [2024-11-20 00:10:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 2053 states have (on average 1.2235752557233317) internal successors, (2512), 2073 states have internal predecessors, (2512), 209 states have call successors, (209), 149 states have call predecessors, (209), 202 states have return successors, (292), 244 states have call predecessors, (292), 206 states have call successors, (292) [2024-11-20 00:10:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3013 transitions. [2024-11-20 00:10:21,709 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3013 transitions. Word has length 190 [2024-11-20 00:10:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:21,709 INFO L471 AbstractCegarLoop]: Abstraction has 2466 states and 3013 transitions. [2024-11-20 00:10:21,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:10:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3013 transitions. [2024-11-20 00:10:21,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:21,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:21,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:21,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:10:21,713 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:21,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash 149698393, now seen corresponding path program 1 times [2024-11-20 00:10:21,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:21,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924666427] [2024-11-20 00:10:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:21,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:21,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924666427] [2024-11-20 00:10:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924666427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:21,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:21,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:10:21,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973565795] [2024-11-20 00:10:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:21,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:10:21,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:10:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:10:21,922 INFO L87 Difference]: Start difference. First operand 2466 states and 3013 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-20 00:10:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:24,658 INFO L93 Difference]: Finished difference Result 3596 states and 4832 transitions. [2024-11-20 00:10:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:10:24,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:24,669 INFO L225 Difference]: With dead ends: 3596 [2024-11-20 00:10:24,669 INFO L226 Difference]: Without dead ends: 3194 [2024-11-20 00:10:24,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:10:24,672 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 1920 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:24,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 1675 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 00:10:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2024-11-20 00:10:25,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2887. [2024-11-20 00:10:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2445 states have (on average 1.2813905930470348) internal successors, (3133), 2466 states have internal predecessors, (3133), 231 states have call successors, (231), 155 states have call predecessors, (231), 209 states have return successors, (317), 266 states have call predecessors, (317), 228 states have call successors, (317) [2024-11-20 00:10:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 3681 transitions. [2024-11-20 00:10:25,025 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 3681 transitions. Word has length 190 [2024-11-20 00:10:25,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:25,025 INFO L471 AbstractCegarLoop]: Abstraction has 2887 states and 3681 transitions. [2024-11-20 00:10:25,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-20 00:10:25,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 3681 transitions. [2024-11-20 00:10:25,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:25,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:25,028 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:25,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:10:25,028 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:25,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1697328043, now seen corresponding path program 1 times [2024-11-20 00:10:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:25,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541835961] [2024-11-20 00:10:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:25,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:25,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:25,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541835961] [2024-11-20 00:10:25,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541835961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:25,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:25,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:25,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339712982] [2024-11-20 00:10:25,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:25,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:25,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:25,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:25,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:25,230 INFO L87 Difference]: Start difference. First operand 2887 states and 3681 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:28,748 INFO L93 Difference]: Finished difference Result 4612 states and 6463 transitions. [2024-11-20 00:10:28,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:10:28,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:28,759 INFO L225 Difference]: With dead ends: 4612 [2024-11-20 00:10:28,759 INFO L226 Difference]: Without dead ends: 3789 [2024-11-20 00:10:28,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:10:28,761 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 1955 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 4205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:28,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 3113 Invalid, 4205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 00:10:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2024-11-20 00:10:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3279. [2024-11-20 00:10:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 2808 states have (on average 1.3162393162393162) internal successors, (3696), 2830 states have internal predecessors, (3696), 253 states have call successors, (253), 161 states have call predecessors, (253), 216 states have return successors, (341), 289 states have call predecessors, (341), 250 states have call successors, (341) [2024-11-20 00:10:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4290 transitions. [2024-11-20 00:10:29,110 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4290 transitions. Word has length 190 [2024-11-20 00:10:29,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:29,110 INFO L471 AbstractCegarLoop]: Abstraction has 3279 states and 4290 transitions. [2024-11-20 00:10:29,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4290 transitions. [2024-11-20 00:10:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:29,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:29,113 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:29,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:10:29,113 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:29,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash 674388823, now seen corresponding path program 1 times [2024-11-20 00:10:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734086692] [2024-11-20 00:10:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:29,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:29,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734086692] [2024-11-20 00:10:29,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734086692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:29,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:29,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:29,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43985665] [2024-11-20 00:10:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:29,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:29,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:29,319 INFO L87 Difference]: Start difference. First operand 3279 states and 4290 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:32,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:32,894 INFO L93 Difference]: Finished difference Result 6111 states and 8848 transitions. [2024-11-20 00:10:32,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:10:32,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:32,909 INFO L225 Difference]: With dead ends: 6111 [2024-11-20 00:10:32,910 INFO L226 Difference]: Without dead ends: 4896 [2024-11-20 00:10:32,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:10:32,914 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1953 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 4100 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:32,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 3111 Invalid, 4203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4100 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 00:10:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4896 states. [2024-11-20 00:10:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4896 to 4064. [2024-11-20 00:10:33,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3535 states have (on average 1.3643564356435645) internal successors, (4823), 3559 states have internal predecessors, (4823), 297 states have call successors, (297), 173 states have call predecessors, (297), 230 states have return successors, (393), 335 states have call predecessors, (393), 294 states have call successors, (393) [2024-11-20 00:10:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5513 transitions. [2024-11-20 00:10:33,282 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5513 transitions. Word has length 190 [2024-11-20 00:10:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:33,282 INFO L471 AbstractCegarLoop]: Abstraction has 4064 states and 5513 transitions. [2024-11-20 00:10:33,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5513 transitions. [2024-11-20 00:10:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:33,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:33,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:33,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:10:33,285 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:33,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:33,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1050219499, now seen corresponding path program 1 times [2024-11-20 00:10:33,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:33,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207505825] [2024-11-20 00:10:33,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:33,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:33,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:33,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207505825] [2024-11-20 00:10:33,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207505825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:33,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:33,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:33,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747867108] [2024-11-20 00:10:33,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:33,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:33,482 INFO L87 Difference]: Start difference. First operand 4064 states and 5513 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:35,432 INFO L93 Difference]: Finished difference Result 6884 states and 10062 transitions. [2024-11-20 00:10:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:35,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:35,445 INFO L225 Difference]: With dead ends: 6884 [2024-11-20 00:10:35,445 INFO L226 Difference]: Without dead ends: 4884 [2024-11-20 00:10:35,448 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 [2024-11-20 00:10:35,448 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 1459 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:35,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1697 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:10:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2024-11-20 00:10:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 4064. [2024-11-20 00:10:35,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3535 states have (on average 1.3629420084865629) internal successors, (4818), 3559 states have internal predecessors, (4818), 297 states have call successors, (297), 173 states have call predecessors, (297), 230 states have return successors, (393), 335 states have call predecessors, (393), 294 states have call successors, (393) [2024-11-20 00:10:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5508 transitions. [2024-11-20 00:10:35,856 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5508 transitions. Word has length 190 [2024-11-20 00:10:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:35,857 INFO L471 AbstractCegarLoop]: Abstraction has 4064 states and 5508 transitions. [2024-11-20 00:10:35,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5508 transitions. [2024-11-20 00:10:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:35,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:35,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:35,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:10:35,860 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:35,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash -551662697, now seen corresponding path program 1 times [2024-11-20 00:10:35,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:35,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237723286] [2024-11-20 00:10:35,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:35,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:35,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:35,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:36,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:36,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:36,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:36,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237723286] [2024-11-20 00:10:36,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237723286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:36,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:36,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262539338] [2024-11-20 00:10:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:36,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:36,062 INFO L87 Difference]: Start difference. First operand 4064 states and 5508 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:38,126 INFO L93 Difference]: Finished difference Result 6878 states and 10036 transitions. [2024-11-20 00:10:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:38,139 INFO L225 Difference]: With dead ends: 6878 [2024-11-20 00:10:38,139 INFO L226 Difference]: Without dead ends: 4878 [2024-11-20 00:10:38,142 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 [2024-11-20 00:10:38,142 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 1556 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:38,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 1696 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:10:38,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2024-11-20 00:10:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 4064. [2024-11-20 00:10:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3535 states have (on average 1.3615275813295615) internal successors, (4813), 3559 states have internal predecessors, (4813), 297 states have call successors, (297), 173 states have call predecessors, (297), 230 states have return successors, (393), 335 states have call predecessors, (393), 294 states have call successors, (393) [2024-11-20 00:10:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5503 transitions. [2024-11-20 00:10:38,524 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5503 transitions. Word has length 190 [2024-11-20 00:10:38,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:38,524 INFO L471 AbstractCegarLoop]: Abstraction has 4064 states and 5503 transitions. [2024-11-20 00:10:38,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5503 transitions. [2024-11-20 00:10:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:38,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:38,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:38,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:10:38,526 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:38,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:38,526 INFO L85 PathProgramCache]: Analyzing trace with hash 18609109, now seen corresponding path program 1 times [2024-11-20 00:10:38,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386403990] [2024-11-20 00:10:38,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:38,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:38,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386403990] [2024-11-20 00:10:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386403990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:38,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:38,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:38,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60058125] [2024-11-20 00:10:38,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:38,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:38,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:38,739 INFO L87 Difference]: Start difference. First operand 4064 states and 5503 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:40,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:40,676 INFO L93 Difference]: Finished difference Result 6866 states and 9998 transitions. [2024-11-20 00:10:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:40,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:40,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:40,691 INFO L225 Difference]: With dead ends: 6866 [2024-11-20 00:10:40,691 INFO L226 Difference]: Without dead ends: 4866 [2024-11-20 00:10:40,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:10:40,697 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 1689 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:40,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 1416 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:10:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2024-11-20 00:10:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 4064. [2024-11-20 00:10:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 3535 states have (on average 1.3601131541725602) internal successors, (4808), 3559 states have internal predecessors, (4808), 297 states have call successors, (297), 173 states have call predecessors, (297), 230 states have return successors, (393), 335 states have call predecessors, (393), 294 states have call successors, (393) [2024-11-20 00:10:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5498 transitions. [2024-11-20 00:10:41,092 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5498 transitions. Word has length 190 [2024-11-20 00:10:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:41,092 INFO L471 AbstractCegarLoop]: Abstraction has 4064 states and 5498 transitions. [2024-11-20 00:10:41,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5498 transitions. [2024-11-20 00:10:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:41,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:41,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:41,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:10:41,094 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:41,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash -767388781, now seen corresponding path program 1 times [2024-11-20 00:10:41,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:41,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768361478] [2024-11-20 00:10:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:41,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:41,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:41,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768361478] [2024-11-20 00:10:41,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768361478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:41,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:41,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:41,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244717189] [2024-11-20 00:10:41,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:41,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:41,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:41,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:41,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:41,306 INFO L87 Difference]: Start difference. First operand 4064 states and 5498 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:44,879 INFO L93 Difference]: Finished difference Result 8971 states and 13291 transitions. [2024-11-20 00:10:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:10:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:44,900 INFO L225 Difference]: With dead ends: 8971 [2024-11-20 00:10:44,900 INFO L226 Difference]: Without dead ends: 6971 [2024-11-20 00:10:44,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:10:44,906 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1932 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 3994 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:44,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 3111 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3994 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 00:10:44,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6971 states. [2024-11-20 00:10:45,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6971 to 5653. [2024-11-20 00:10:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 5008 states have (on average 1.4129392971246006) internal successors, (7076), 5036 states have internal predecessors, (7076), 385 states have call successors, (385), 197 states have call predecessors, (385), 258 states have return successors, (503), 427 states have call predecessors, (503), 382 states have call successors, (503) [2024-11-20 00:10:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 7964 transitions. [2024-11-20 00:10:45,443 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 7964 transitions. Word has length 190 [2024-11-20 00:10:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:45,443 INFO L471 AbstractCegarLoop]: Abstraction has 5653 states and 7964 transitions. [2024-11-20 00:10:45,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 7964 transitions. [2024-11-20 00:10:45,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:45,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:45,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:45,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 00:10:45,446 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:45,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash -100006891, now seen corresponding path program 1 times [2024-11-20 00:10:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:45,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678910415] [2024-11-20 00:10:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:45,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:45,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:45,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678910415] [2024-11-20 00:10:45,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678910415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:45,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:45,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:45,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003946768] [2024-11-20 00:10:45,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:45,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:45,644 INFO L87 Difference]: Start difference. First operand 5653 states and 7964 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:49,386 INFO L93 Difference]: Finished difference Result 14742 states and 22363 transitions. [2024-11-20 00:10:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:10:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:49,416 INFO L225 Difference]: With dead ends: 14742 [2024-11-20 00:10:49,416 INFO L226 Difference]: Without dead ends: 11153 [2024-11-20 00:10:49,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:10:49,424 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1931 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 3981 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:49,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 3111 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3981 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 00:10:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11153 states. [2024-11-20 00:10:50,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11153 to 8830. [2024-11-20 00:10:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8830 states, 7953 states have (on average 1.4593235257135673) internal successors, (11606), 7989 states have internal predecessors, (11606), 561 states have call successors, (561), 245 states have call predecessors, (561), 314 states have return successors, (741), 611 states have call predecessors, (741), 558 states have call successors, (741) [2024-11-20 00:10:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 12908 transitions. [2024-11-20 00:10:50,136 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 12908 transitions. Word has length 190 [2024-11-20 00:10:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:50,136 INFO L471 AbstractCegarLoop]: Abstraction has 8830 states and 12908 transitions. [2024-11-20 00:10:50,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 12908 transitions. [2024-11-20 00:10:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:50,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:50,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:50,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 00:10:50,141 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:50,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:50,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1999731539, now seen corresponding path program 1 times [2024-11-20 00:10:50,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:50,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420177684] [2024-11-20 00:10:50,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:50,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:50,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420177684] [2024-11-20 00:10:50,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420177684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:50,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:50,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:50,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933991642] [2024-11-20 00:10:50,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:50,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:50,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:50,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:50,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:50,331 INFO L87 Difference]: Start difference. First operand 8830 states and 12908 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:52,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:52,781 INFO L93 Difference]: Finished difference Result 18016 states and 27571 transitions. [2024-11-20 00:10:52,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:10:52,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:52,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:52,806 INFO L225 Difference]: With dead ends: 18016 [2024-11-20 00:10:52,806 INFO L226 Difference]: Without dead ends: 11250 [2024-11-20 00:10:52,815 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 [2024-11-20 00:10:52,815 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 1459 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:52,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1697 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:10:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2024-11-20 00:10:53,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 8830. [2024-11-20 00:10:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8830 states, 7953 states have (on average 1.4571859675594114) internal successors, (11589), 7989 states have internal predecessors, (11589), 561 states have call successors, (561), 245 states have call predecessors, (561), 314 states have return successors, (741), 611 states have call predecessors, (741), 558 states have call successors, (741) [2024-11-20 00:10:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 12891 transitions. [2024-11-20 00:10:53,478 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 12891 transitions. Word has length 190 [2024-11-20 00:10:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:53,478 INFO L471 AbstractCegarLoop]: Abstraction has 8830 states and 12891 transitions. [2024-11-20 00:10:53,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:53,479 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 12891 transitions. [2024-11-20 00:10:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:53,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:53,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:53,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 00:10:53,482 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:53,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1950407595, now seen corresponding path program 1 times [2024-11-20 00:10:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844667544] [2024-11-20 00:10:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:53,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:53,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844667544] [2024-11-20 00:10:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844667544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363279338] [2024-11-20 00:10:53,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:53,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:53,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:53,678 INFO L87 Difference]: Start difference. First operand 8830 states and 12891 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:10:57,789 INFO L93 Difference]: Finished difference Result 26259 states and 40433 transitions. [2024-11-20 00:10:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:10:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:10:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:10:57,834 INFO L225 Difference]: With dead ends: 26259 [2024-11-20 00:10:57,834 INFO L226 Difference]: Without dead ends: 19493 [2024-11-20 00:10:57,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:10:57,848 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1923 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:10:57,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 3111 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 00:10:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19493 states. [2024-11-20 00:10:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19493 to 15216. [2024-11-20 00:10:58,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15216 states, 13875 states have (on average 1.4899459459459459) internal successors, (20673), 13927 states have internal predecessors, (20673), 913 states have call successors, (913), 341 states have call predecessors, (913), 426 states have return successors, (1271), 979 states have call predecessors, (1271), 910 states have call successors, (1271) [2024-11-20 00:10:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15216 states to 15216 states and 22857 transitions. [2024-11-20 00:10:58,917 INFO L78 Accepts]: Start accepts. Automaton has 15216 states and 22857 transitions. Word has length 190 [2024-11-20 00:10:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:10:58,918 INFO L471 AbstractCegarLoop]: Abstraction has 15216 states and 22857 transitions. [2024-11-20 00:10:58,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:10:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 15216 states and 22857 transitions. [2024-11-20 00:10:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:10:58,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:10:58,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:10:58,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 00:10:58,924 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:10:58,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:10:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash -969452781, now seen corresponding path program 1 times [2024-11-20 00:10:58,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:10:58,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500586119] [2024-11-20 00:10:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:10:58,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:10:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:58,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:10:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:59,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:10:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:59,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:10:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:59,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:10:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:59,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:10:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:10:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:10:59,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:10:59,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500586119] [2024-11-20 00:10:59,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500586119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:10:59,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:10:59,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:10:59,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798892646] [2024-11-20 00:10:59,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:10:59,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:10:59,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:10:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:10:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:10:59,135 INFO L87 Difference]: Start difference. First operand 15216 states and 22857 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:11:03,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:11:03,992 INFO L93 Difference]: Finished difference Result 49331 states and 76913 transitions. [2024-11-20 00:11:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:11:03,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2024-11-20 00:11:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:11:04,073 INFO L225 Difference]: With dead ends: 49331 [2024-11-20 00:11:04,073 INFO L226 Difference]: Without dead ends: 36179 [2024-11-20 00:11:04,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:11:04,106 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1922 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:11:04,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 3111 Invalid, 4033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-20 00:11:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36179 states. [2024-11-20 00:11:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36179 to 28017. [2024-11-20 00:11:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28017 states, 25748 states have (on average 1.5101367096473512) internal successors, (38883), 25832 states have internal predecessors, (38883), 1617 states have call successors, (1617), 533 states have call predecessors, (1617), 650 states have return successors, (2493), 1715 states have call predecessors, (2493), 1614 states have call successors, (2493) [2024-11-20 00:11:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28017 states to 28017 states and 42993 transitions. [2024-11-20 00:11:06,066 INFO L78 Accepts]: Start accepts. Automaton has 28017 states and 42993 transitions. Word has length 190 [2024-11-20 00:11:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:11:06,066 INFO L471 AbstractCegarLoop]: Abstraction has 28017 states and 42993 transitions. [2024-11-20 00:11:06,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:11:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 28017 states and 42993 transitions. [2024-11-20 00:11:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-20 00:11:06,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:11:06,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:11:06,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 00:11:06,077 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:11:06,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:11:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1556042901, now seen corresponding path program 1 times [2024-11-20 00:11:06,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:11:06,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956870278] [2024-11-20 00:11:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:11:06,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:11:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:11:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:11:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:11:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:11:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:11:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:11:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:11:06,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:11:06,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956870278] [2024-11-20 00:11:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956870278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:11:06,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:11:06,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:11:06,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203129591] [2024-11-20 00:11:06,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:11:06,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:11:06,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:11:06,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:11:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:11:06,265 INFO L87 Difference]: Start difference. First operand 28017 states and 42993 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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)