./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.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 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:58:51,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:58:51,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:58:51,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:58:51,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:58:51,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:58:51,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:58:51,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:58:51,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:58:51,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:58:51,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:58:51,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:58:51,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:58:51,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:58:51,334 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:58:51,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:58:51,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:58:51,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:58:51,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:58:51,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:58:51,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:58:51,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:58:51,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:58:51,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:58:51,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:58:51,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:58:51,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:58:51,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:58:51,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:58:51,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:58:51,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:58:51,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:58:51,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:51,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:58:51,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:58:51,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:58:51,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:58:51,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:58:51,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:58:51,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:58:51,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:58:51,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:58:51,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37139db5f2012b0b7a96ab437e26855d856636bc4064d013c0b416905ff6e54c [2024-11-11 22:58:51,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:58:51,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:58:51,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:58:51,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:58:51,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:58:51,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-11 22:58:53,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:58:53,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:58:53,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-11 22:58:53,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3611a3091/9c306cfec0a841f0aec550ea8b54aa6f/FLAG6b6e391fb [2024-11-11 22:58:53,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3611a3091/9c306cfec0a841f0aec550ea8b54aa6f [2024-11-11 22:58:53,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:58:53,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:58:53,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:53,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:58:53,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:58:53,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf0f89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53, skipping insertion in model container [2024-11-11 22:58:53,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:58:53,576 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_3.cil+token_ring.04.cil-1.c[911,924] [2024-11-11 22:58:53,664 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_3.cil+token_ring.04.cil-1.c[8416,8429] [2024-11-11 22:58:53,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:53,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:58:53,756 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_3.cil+token_ring.04.cil-1.c[911,924] [2024-11-11 22:58:53,784 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_3.cil+token_ring.04.cil-1.c[8416,8429] [2024-11-11 22:58:53,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:53,833 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:58:53,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53 WrapperNode [2024-11-11 22:58:53,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:53,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:53,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:58:53,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:58:53,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,900 INFO L138 Inliner]: procedures = 63, calls = 73, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 626 [2024-11-11 22:58:53,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:53,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:58:53,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:58:53,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:58:53,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,948 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:58:53,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:58:53,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:58:53,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:58:53,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:58:53,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:54,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:54,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:54,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:58:54,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:58:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:58:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:58:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:58:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:58:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:58:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:58:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:58:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:58:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:58:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:58:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:58:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:58:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:58:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:58:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:58:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:58:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:58:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:58:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:58:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:58:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:58:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:58:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:58:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:58:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:58:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:58:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:58:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:58:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:58:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:58:54,096 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:58:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:58:54,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:58:54,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:58:54,829 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-11 22:58:54,829 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-11 22:58:54,921 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-11 22:58:54,922 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:58:54,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:58:54,952 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-11 22:58:54,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:54 BoogieIcfgContainer [2024-11-11 22:58:54,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:58:54,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:58:54,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:58:54,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:58:54,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:58:53" (1/3) ... [2024-11-11 22:58:54,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413dc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:54, skipping insertion in model container [2024-11-11 22:58:54,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (2/3) ... [2024-11-11 22:58:54,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413dc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:54, skipping insertion in model container [2024-11-11 22:58:54,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:54" (3/3) ... [2024-11-11 22:58:54,960 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.04.cil-1.c [2024-11-11 22:58:54,972 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:58:54,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:58:55,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:58:55,039 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;@4782049d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:58:55,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:58:55,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 304 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 22:58:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:55,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:55,054 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:55,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:55,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash 857460646, now seen corresponding path program 1 times [2024-11-11 22:58:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:55,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765673065] [2024-11-11 22:58:55,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:55,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:55,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765673065] [2024-11-11 22:58:55,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765673065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:55,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:55,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:58:55,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465936174] [2024-11-11 22:58:55,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:55,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:58:55,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:58:55,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:58:55,742 INFO L87 Difference]: Start difference. First operand has 304 states, 253 states have (on average 1.5731225296442688) internal successors, (398), 259 states have internal predecessors, (398), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:58:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:57,159 INFO L93 Difference]: Finished difference Result 774 states and 1192 transitions. [2024-11-11 22:58:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:58:57,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:58:57,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:57,179 INFO L225 Difference]: With dead ends: 774 [2024-11-11 22:58:57,180 INFO L226 Difference]: Without dead ends: 480 [2024-11-11 22:58:57,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:58:57,191 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 1065 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:57,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1468 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:58:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-11 22:58:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 410. [2024-11-11 22:58:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 338 states have (on average 1.4733727810650887) internal successors, (498), 345 states have internal predecessors, (498), 47 states have call successors, (47), 21 states have call predecessors, (47), 23 states have return successors, (56), 46 states have call predecessors, (56), 45 states have call successors, (56) [2024-11-11 22:58:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 601 transitions. [2024-11-11 22:58:57,334 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 601 transitions. Word has length 65 [2024-11-11 22:58:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:57,335 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 601 transitions. [2024-11-11 22:58:57,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:58:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 601 transitions. [2024-11-11 22:58:57,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:57,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:57,343 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:57,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:58:57,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:57,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1171125464, now seen corresponding path program 1 times [2024-11-11 22:58:57,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:57,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243773714] [2024-11-11 22:58:57,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:57,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:57,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:57,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243773714] [2024-11-11 22:58:57,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243773714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:57,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:57,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:57,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792750782] [2024-11-11 22:58:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:57,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:57,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:57,539 INFO L87 Difference]: Start difference. First operand 410 states and 601 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), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:58:58,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:58,424 INFO L93 Difference]: Finished difference Result 852 states and 1229 transitions. [2024-11-11 22:58:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:58:58,425 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), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:58:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:58,436 INFO L225 Difference]: With dead ends: 852 [2024-11-11 22:58:58,436 INFO L226 Difference]: Without dead ends: 639 [2024-11-11 22:58:58,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:58:58,441 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 1155 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:58,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1023 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:58:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-11 22:58:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 599. [2024-11-11 22:58:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 490 states have (on average 1.4448979591836735) internal successors, (708), 500 states have internal predecessors, (708), 67 states have call successors, (67), 35 states have call predecessors, (67), 40 states have return successors, (82), 66 states have call predecessors, (82), 65 states have call successors, (82) [2024-11-11 22:58:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 857 transitions. [2024-11-11 22:58:58,538 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 857 transitions. Word has length 65 [2024-11-11 22:58:58,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:58,539 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 857 transitions. [2024-11-11 22:58:58,539 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), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:58:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 857 transitions. [2024-11-11 22:58:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:58:58,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:58,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:58,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:58:58,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:58,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash -572935609, now seen corresponding path program 1 times [2024-11-11 22:58:58,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:58,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31064655] [2024-11-11 22:58:58,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:58:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:58:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:58:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:58,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:58,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31064655] [2024-11-11 22:58:58,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31064655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:58,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:58,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:58:58,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157830850] [2024-11-11 22:58:58,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:58,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:58:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:58:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:58,718 INFO L87 Difference]: Start difference. First operand 599 states and 857 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:58:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:59,636 INFO L93 Difference]: Finished difference Result 1037 states and 1474 transitions. [2024-11-11 22:58:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:58:59,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 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 66 [2024-11-11 22:58:59,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:59,641 INFO L225 Difference]: With dead ends: 1037 [2024-11-11 22:58:59,643 INFO L226 Difference]: Without dead ends: 635 [2024-11-11 22:58:59,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:58:59,648 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 344 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:59,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1746 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:58:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-11 22:58:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 609. [2024-11-11 22:58:59,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 498 states have (on average 1.4337349397590362) internal successors, (714), 508 states have internal predecessors, (714), 67 states have call successors, (67), 35 states have call predecessors, (67), 42 states have return successors, (84), 68 states have call predecessors, (84), 65 states have call successors, (84) [2024-11-11 22:58:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 865 transitions. [2024-11-11 22:58:59,731 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 865 transitions. Word has length 66 [2024-11-11 22:58:59,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:59,731 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 865 transitions. [2024-11-11 22:58:59,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:58:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 865 transitions. [2024-11-11 22:58:59,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:58:59,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:59,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:59,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:58:59,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:59,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1602294907, now seen corresponding path program 1 times [2024-11-11 22:58:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776155938] [2024-11-11 22:58:59,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:59,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:58:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:58:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:58:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:59,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:59,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776155938] [2024-11-11 22:58:59,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776155938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:59,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:59,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:58:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190631752] [2024-11-11 22:58:59,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:59,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:58:59,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:59,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:58:59,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:59,930 INFO L87 Difference]: Start difference. First operand 609 states and 865 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:01,911 INFO L93 Difference]: Finished difference Result 2074 states and 2980 transitions. [2024-11-11 22:59:01,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:59:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 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 66 [2024-11-11 22:59:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:01,917 INFO L225 Difference]: With dead ends: 2074 [2024-11-11 22:59:01,917 INFO L226 Difference]: Without dead ends: 848 [2024-11-11 22:59:01,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:59:01,922 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 1696 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:01,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 1913 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 22:59:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-11 22:59:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 758. [2024-11-11 22:59:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 608 states have (on average 1.399671052631579) internal successors, (851), 621 states have internal predecessors, (851), 87 states have call successors, (87), 49 states have call predecessors, (87), 61 states have return successors, (120), 90 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-11 22:59:01,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1058 transitions. [2024-11-11 22:59:01,997 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1058 transitions. Word has length 66 [2024-11-11 22:59:01,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:01,997 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1058 transitions. [2024-11-11 22:59:01,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1058 transitions. [2024-11-11 22:59:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:59:01,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:01,999 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:02,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:59:02,001 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:02,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1653003208, now seen corresponding path program 1 times [2024-11-11 22:59:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:02,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821517995] [2024-11-11 22:59:02,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:02,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:02,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821517995] [2024-11-11 22:59:02,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821517995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:02,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:02,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:59:02,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367169271] [2024-11-11 22:59:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:59:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:59:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:59:02,169 INFO L87 Difference]: Start difference. First operand 758 states and 1058 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:03,051 INFO L93 Difference]: Finished difference Result 1658 states and 2334 transitions. [2024-11-11 22:59:03,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 22:59:03,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-11 22:59:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:03,054 INFO L225 Difference]: With dead ends: 1658 [2024-11-11 22:59:03,055 INFO L226 Difference]: Without dead ends: 183 [2024-11-11 22:59:03,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-11 22:59:03,059 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1124 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:03,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1128 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:59:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-11 22:59:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-11 22:59:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 158 states have (on average 1.5) internal successors, (237), 159 states have internal predecessors, (237), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-11 22:59:03,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 273 transitions. [2024-11-11 22:59:03,069 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 273 transitions. Word has length 67 [2024-11-11 22:59:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:03,070 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 273 transitions. [2024-11-11 22:59:03,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 273 transitions. [2024-11-11 22:59:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:03,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:03,071 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:03,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:59:03,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:03,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:03,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1579621547, now seen corresponding path program 1 times [2024-11-11 22:59:03,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:03,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193085605] [2024-11-11 22:59:03,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:03,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:03,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:03,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193085605] [2024-11-11 22:59:03,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193085605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:03,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:03,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:59:03,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982406513] [2024-11-11 22:59:03,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:03,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:59:03,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:03,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:59:03,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:59:03,173 INFO L87 Difference]: Start difference. First operand 183 states and 273 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:03,715 INFO L93 Difference]: Finished difference Result 409 states and 622 transitions. [2024-11-11 22:59:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:59:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:03,718 INFO L225 Difference]: With dead ends: 409 [2024-11-11 22:59:03,718 INFO L226 Difference]: Without dead ends: 237 [2024-11-11 22:59:03,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:59:03,720 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 435 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:03,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 367 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:59:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-11 22:59:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 183. [2024-11-11 22:59:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 158 states have (on average 1.4936708860759493) internal successors, (236), 159 states have internal predecessors, (236), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-11 22:59:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 272 transitions. [2024-11-11 22:59:03,737 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 272 transitions. Word has length 90 [2024-11-11 22:59:03,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:03,738 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 272 transitions. [2024-11-11 22:59:03,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:03,738 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 272 transitions. [2024-11-11 22:59:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:03,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:03,741 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:03,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:59:03,741 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:03,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1876312087, now seen corresponding path program 1 times [2024-11-11 22:59:03,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:03,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696120982] [2024-11-11 22:59:03,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:03,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:03,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696120982] [2024-11-11 22:59:03,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696120982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:03,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:03,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:03,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385785528] [2024-11-11 22:59:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:03,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:03,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:03,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:03,906 INFO L87 Difference]: Start difference. First operand 183 states and 272 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:04,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:04,899 INFO L93 Difference]: Finished difference Result 633 states and 969 transitions. [2024-11-11 22:59:04,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:59:04,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:04,903 INFO L225 Difference]: With dead ends: 633 [2024-11-11 22:59:04,903 INFO L226 Difference]: Without dead ends: 463 [2024-11-11 22:59:04,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:59:04,905 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 646 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:04,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 622 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-11 22:59:04,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 356. [2024-11-11 22:59:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 311 states have (on average 1.5080385852090032) internal successors, (469), 313 states have internal predecessors, (469), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-11-11 22:59:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 534 transitions. [2024-11-11 22:59:04,945 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 534 transitions. Word has length 90 [2024-11-11 22:59:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:04,946 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 534 transitions. [2024-11-11 22:59:04,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 534 transitions. [2024-11-11 22:59:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:04,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:04,947 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:04,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:59:04,948 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:04,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash 701652635, now seen corresponding path program 1 times [2024-11-11 22:59:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137827444] [2024-11-11 22:59:04,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:04,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:05,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137827444] [2024-11-11 22:59:05,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137827444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:05,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:05,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:05,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242988584] [2024-11-11 22:59:05,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:05,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:05,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:05,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:05,106 INFO L87 Difference]: Start difference. First operand 356 states and 534 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:06,486 INFO L93 Difference]: Finished difference Result 1036 states and 1581 transitions. [2024-11-11 22:59:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:06,491 INFO L225 Difference]: With dead ends: 1036 [2024-11-11 22:59:06,491 INFO L226 Difference]: Without dead ends: 693 [2024-11-11 22:59:06,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:06,493 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 647 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:06,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1171 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:59:06,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-11 22:59:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 518. [2024-11-11 22:59:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 453 states have (on average 1.5011037527593818) internal successors, (680), 456 states have internal predecessors, (680), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-11 22:59:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 773 transitions. [2024-11-11 22:59:06,528 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 773 transitions. Word has length 90 [2024-11-11 22:59:06,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:06,529 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 773 transitions. [2024-11-11 22:59:06,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 773 transitions. [2024-11-11 22:59:06,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:06,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:06,530 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:06,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:59:06,530 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:06,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1588875481, now seen corresponding path program 1 times [2024-11-11 22:59:06,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:06,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492602105] [2024-11-11 22:59:06,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:06,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:06,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:06,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492602105] [2024-11-11 22:59:06,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492602105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:06,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:06,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:06,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722753853] [2024-11-11 22:59:06,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:06,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:06,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:06,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:06,671 INFO L87 Difference]: Start difference. First operand 518 states and 773 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:08,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:08,059 INFO L93 Difference]: Finished difference Result 1629 states and 2478 transitions. [2024-11-11 22:59:08,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:08,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:08,066 INFO L225 Difference]: With dead ends: 1629 [2024-11-11 22:59:08,066 INFO L226 Difference]: Without dead ends: 1124 [2024-11-11 22:59:08,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:08,069 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 645 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:08,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1169 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:59:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-11 22:59:08,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 843. [2024-11-11 22:59:08,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 738 states have (on average 1.494579945799458) internal successors, (1103), 743 states have internal predecessors, (1103), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2024-11-11 22:59:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1256 transitions. [2024-11-11 22:59:08,151 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1256 transitions. Word has length 90 [2024-11-11 22:59:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:08,151 INFO L471 AbstractCegarLoop]: Abstraction has 843 states and 1256 transitions. [2024-11-11 22:59:08,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1256 transitions. [2024-11-11 22:59:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:08,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:08,153 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:08,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:59:08,153 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:08,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash -322167077, now seen corresponding path program 1 times [2024-11-11 22:59:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:08,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897359350] [2024-11-11 22:59:08,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:08,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:08,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897359350] [2024-11-11 22:59:08,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897359350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:08,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:08,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849159013] [2024-11-11 22:59:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:08,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:08,299 INFO L87 Difference]: Start difference. First operand 843 states and 1256 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:09,461 INFO L93 Difference]: Finished difference Result 2774 states and 4205 transitions. [2024-11-11 22:59:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:09,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:09,473 INFO L225 Difference]: With dead ends: 2774 [2024-11-11 22:59:09,473 INFO L226 Difference]: Without dead ends: 1944 [2024-11-11 22:59:09,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:09,477 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 694 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:09,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 776 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:09,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-11 22:59:09,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1494. [2024-11-11 22:59:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1309 states have (on average 1.4889228418640184) internal successors, (1949), 1318 states have internal predecessors, (1949), 122 states have call successors, (122), 54 states have call predecessors, (122), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2024-11-11 22:59:09,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2228 transitions. [2024-11-11 22:59:09,618 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2228 transitions. Word has length 90 [2024-11-11 22:59:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:09,618 INFO L471 AbstractCegarLoop]: Abstraction has 1494 states and 2228 transitions. [2024-11-11 22:59:09,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2228 transitions. [2024-11-11 22:59:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:09,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:09,621 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:09,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:59:09,621 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -245266279, now seen corresponding path program 1 times [2024-11-11 22:59:09,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937685721] [2024-11-11 22:59:09,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:09,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:09,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:09,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937685721] [2024-11-11 22:59:09,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937685721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:09,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:09,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:09,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521790742] [2024-11-11 22:59:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:09,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:09,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:09,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:09,768 INFO L87 Difference]: Start difference. First operand 1494 states and 2228 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:11,063 INFO L93 Difference]: Finished difference Result 5063 states and 7675 transitions. [2024-11-11 22:59:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:11,081 INFO L225 Difference]: With dead ends: 5063 [2024-11-11 22:59:11,082 INFO L226 Difference]: Without dead ends: 3582 [2024-11-11 22:59:11,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:11,088 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 643 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:11,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1169 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2024-11-11 22:59:11,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 2801. [2024-11-11 22:59:11,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2456 states have (on average 1.4849348534201954) internal successors, (3647), 2473 states have internal predecessors, (3647), 226 states have call successors, (226), 102 states have call predecessors, (226), 118 states have return successors, (323), 241 states have call predecessors, (323), 226 states have call successors, (323) [2024-11-11 22:59:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 4196 transitions. [2024-11-11 22:59:11,328 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 4196 transitions. Word has length 90 [2024-11-11 22:59:11,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:11,328 INFO L471 AbstractCegarLoop]: Abstraction has 2801 states and 4196 transitions. [2024-11-11 22:59:11,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 4196 transitions. [2024-11-11 22:59:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:11,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:11,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:11,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:59:11,332 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:11,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:11,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1212616933, now seen corresponding path program 1 times [2024-11-11 22:59:11,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:11,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722555989] [2024-11-11 22:59:11,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:11,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722555989] [2024-11-11 22:59:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722555989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:11,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:11,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:11,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674051231] [2024-11-11 22:59:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:11,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:11,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:11,462 INFO L87 Difference]: Start difference. First operand 2801 states and 4196 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:13,192 INFO L93 Difference]: Finished difference Result 10473 states and 15911 transitions. [2024-11-11 22:59:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:13,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:13,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:13,234 INFO L225 Difference]: With dead ends: 10473 [2024-11-11 22:59:13,234 INFO L226 Difference]: Without dead ends: 7685 [2024-11-11 22:59:13,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:13,249 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 773 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:13,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1155 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7685 states. [2024-11-11 22:59:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7685 to 5317. [2024-11-11 22:59:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 4668 states have (on average 1.4856469580119966) internal successors, (6935), 4701 states have internal predecessors, (6935), 418 states have call successors, (418), 198 states have call predecessors, (418), 230 states have return successors, (693), 449 states have call predecessors, (693), 418 states have call successors, (693) [2024-11-11 22:59:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8046 transitions. [2024-11-11 22:59:13,715 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8046 transitions. Word has length 90 [2024-11-11 22:59:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:13,716 INFO L471 AbstractCegarLoop]: Abstraction has 5317 states and 8046 transitions. [2024-11-11 22:59:13,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8046 transitions. [2024-11-11 22:59:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:13,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:13,723 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:13,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:59:13,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:13,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:13,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1705243107, now seen corresponding path program 1 times [2024-11-11 22:59:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:13,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558318536] [2024-11-11 22:59:13,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:13,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558318536] [2024-11-11 22:59:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558318536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:13,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:13,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:13,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144400158] [2024-11-11 22:59:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:13,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:13,900 INFO L87 Difference]: Start difference. First operand 5317 states and 8046 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:16,034 INFO L93 Difference]: Finished difference Result 19679 states and 30123 transitions. [2024-11-11 22:59:16,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:16,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:16,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:16,104 INFO L225 Difference]: With dead ends: 19679 [2024-11-11 22:59:16,104 INFO L226 Difference]: Without dead ends: 14375 [2024-11-11 22:59:16,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:16,128 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 661 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:16,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1159 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:16,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2024-11-11 22:59:17,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 10410. [2024-11-11 22:59:17,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10410 states, 9169 states have (on average 1.4886029010797253) internal successors, (13649), 9234 states have internal predecessors, (13649), 786 states have call successors, (786), 390 states have call predecessors, (786), 454 states have return successors, (1579), 849 states have call predecessors, (1579), 786 states have call successors, (1579) [2024-11-11 22:59:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10410 states to 10410 states and 16014 transitions. [2024-11-11 22:59:17,164 INFO L78 Accepts]: Start accepts. Automaton has 10410 states and 16014 transitions. Word has length 90 [2024-11-11 22:59:17,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:17,165 INFO L471 AbstractCegarLoop]: Abstraction has 10410 states and 16014 transitions. [2024-11-11 22:59:17,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 10410 states and 16014 transitions. [2024-11-11 22:59:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:17,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:17,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:17,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:59:17,176 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:17,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash -751302949, now seen corresponding path program 1 times [2024-11-11 22:59:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:17,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913237899] [2024-11-11 22:59:17,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:17,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:17,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913237899] [2024-11-11 22:59:17,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913237899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:17,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:17,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:17,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137497655] [2024-11-11 22:59:17,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:17,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:17,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:17,328 INFO L87 Difference]: Start difference. First operand 10410 states and 16014 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:20,425 INFO L93 Difference]: Finished difference Result 37706 states and 58601 transitions. [2024-11-11 22:59:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:20,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:20,549 INFO L225 Difference]: With dead ends: 37706 [2024-11-11 22:59:20,550 INFO L226 Difference]: Without dead ends: 27309 [2024-11-11 22:59:20,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:20,588 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 694 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:20,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1159 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27309 states. [2024-11-11 22:59:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27309 to 20563. [2024-11-11 22:59:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20563 states, 18170 states have (on average 1.491854705558613) internal successors, (27107), 18299 states have internal predecessors, (27107), 1490 states have call successors, (1490), 774 states have call predecessors, (1490), 902 states have return successors, (3805), 1617 states have call predecessors, (3805), 1490 states have call successors, (3805) [2024-11-11 22:59:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20563 states to 20563 states and 32402 transitions. [2024-11-11 22:59:22,840 INFO L78 Accepts]: Start accepts. Automaton has 20563 states and 32402 transitions. Word has length 90 [2024-11-11 22:59:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:22,841 INFO L471 AbstractCegarLoop]: Abstraction has 20563 states and 32402 transitions. [2024-11-11 22:59:22,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 20563 states and 32402 transitions. [2024-11-11 22:59:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:22,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:22,864 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:22,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:59:22,864 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:22,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:22,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1967456675, now seen corresponding path program 1 times [2024-11-11 22:59:22,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:22,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435634924] [2024-11-11 22:59:22,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:22,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:22,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:22,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:22,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:23,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:23,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435634924] [2024-11-11 22:59:23,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435634924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:23,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:23,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:23,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240728614] [2024-11-11 22:59:23,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:23,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:23,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:23,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:23,010 INFO L87 Difference]: Start difference. First operand 20563 states and 32402 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:27,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:27,089 INFO L93 Difference]: Finished difference Result 72577 states and 115615 transitions. [2024-11-11 22:59:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:27,343 INFO L225 Difference]: With dead ends: 72577 [2024-11-11 22:59:27,343 INFO L226 Difference]: Without dead ends: 52027 [2024-11-11 22:59:27,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:27,420 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 651 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:27,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1159 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:59:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52027 states. [2024-11-11 22:59:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52027 to 40804. [2024-11-11 22:59:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40804 states, 36171 states have (on average 1.4952586326062316) internal successors, (54085), 36428 states have internal predecessors, (54085), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2024-11-11 22:59:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40804 states to 40804 states and 66570 transitions. [2024-11-11 22:59:31,389 INFO L78 Accepts]: Start accepts. Automaton has 40804 states and 66570 transitions. Word has length 90 [2024-11-11 22:59:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:31,390 INFO L471 AbstractCegarLoop]: Abstraction has 40804 states and 66570 transitions. [2024-11-11 22:59:31,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 40804 states and 66570 transitions. [2024-11-11 22:59:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:31,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:31,422 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:31,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:59:31,422 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:31,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1595543195, now seen corresponding path program 1 times [2024-11-11 22:59:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:31,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495996772] [2024-11-11 22:59:31,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:31,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:31,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:31,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:31,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495996772] [2024-11-11 22:59:31,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495996772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:31,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:31,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:31,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888376836] [2024-11-11 22:59:31,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:31,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:31,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:31,544 INFO L87 Difference]: Start difference. First operand 40804 states and 66570 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:35,667 INFO L93 Difference]: Finished difference Result 91394 states and 148613 transitions. [2024-11-11 22:59:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:59:35,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2024-11-11 22:59:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:35,955 INFO L225 Difference]: With dead ends: 91394 [2024-11-11 22:59:35,955 INFO L226 Difference]: Without dead ends: 50604 [2024-11-11 22:59:36,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:59:36,072 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 221 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:36,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 801 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:59:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50604 states. [2024-11-11 22:59:39,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50604 to 41575. [2024-11-11 22:59:39,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41575 states, 36942 states have (on average 1.4849223106491256) internal successors, (54856), 37199 states have internal predecessors, (54856), 2834 states have call successors, (2834), 1542 states have call predecessors, (2834), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2024-11-11 22:59:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41575 states to 41575 states and 67341 transitions. [2024-11-11 22:59:40,255 INFO L78 Accepts]: Start accepts. Automaton has 41575 states and 67341 transitions. Word has length 90 [2024-11-11 22:59:40,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:40,257 INFO L471 AbstractCegarLoop]: Abstraction has 41575 states and 67341 transitions. [2024-11-11 22:59:40,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 41575 states and 67341 transitions. [2024-11-11 22:59:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 22:59:40,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:40,290 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:40,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:59:40,290 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:40,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1438506851, now seen corresponding path program 1 times [2024-11-11 22:59:40,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:40,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147208727] [2024-11-11 22:59:40,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:40,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:40,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:40,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147208727] [2024-11-11 22:59:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147208727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:40,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:40,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925382956] [2024-11-11 22:59:40,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:40,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:40,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:40,412 INFO L87 Difference]: Start difference. First operand 41575 states and 67341 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)