./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/Problem05_label42+token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 416d3b74bdc0e830f927a3018e8747e6a310d2a238902dccf396a8065404f3af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:05:50,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:05:50,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:05:50,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:05:50,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:05:50,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:05:50,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:05:50,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:05:50,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:05:50,140 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:05:50,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:05:50,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:05:50,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:05:50,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:05:50,143 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:05:50,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:05:50,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:05:50,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:05:50,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:05:50,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:05:50,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:05:50,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:05:50,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:05:50,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:05:50,149 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:05:50,149 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:05:50,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:05:50,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:05:50,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:05:50,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:05:50,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:05:50,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:05:50,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:05:50,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:05:50,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:05:50,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:05:50,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:05:50,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:05:50,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:05:50,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:05:50,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:05:50,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:05:50,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 416d3b74bdc0e830f927a3018e8747e6a310d2a238902dccf396a8065404f3af [2024-11-16 09:05:50,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:05:50,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:05:50,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:05:50,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:05:50,428 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:05:50,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-2.c [2024-11-16 09:05:51,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:05:52,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:05:52,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-2.c [2024-11-16 09:05:52,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6260066/c21c29c64a7445f8b0e15674129ffbff/FLAGbe33491b1 [2024-11-16 09:05:52,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6260066/c21c29c64a7445f8b0e15674129ffbff [2024-11-16 09:05:52,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:05:52,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:05:52,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:05:52,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:05:52,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:05:52,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:05:52" (1/1) ... [2024-11-16 09:05:52,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151f2fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:52, skipping insertion in model container [2024-11-16 09:05:52,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:05:52" (1/1) ... [2024-11-16 09:05:52,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:05:54,331 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/Problem05_label42+token_ring.03.cil-2.c[378560,378573] [2024-11-16 09:05:54,363 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-2.c[383339,383352] [2024-11-16 09:05:54,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:05:54,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:05:55,351 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/Problem05_label42+token_ring.03.cil-2.c[378560,378573] [2024-11-16 09:05:55,359 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/Problem05_label42+token_ring.03.cil-2.c[383339,383352] [2024-11-16 09:05:55,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:05:55,466 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:05:55,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55 WrapperNode [2024-11-16 09:05:55,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:05:55,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:05:55,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:05:55,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:05:55,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:55,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,011 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12686 [2024-11-16 09:05:56,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:05:56,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:05:56,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:05:56,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:05:56,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,201 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]. [2024-11-16 09:05:56,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,394 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:05:56,515 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:05:56,516 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:05:56,516 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:05:56,517 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (1/1) ... [2024-11-16 09:05:56,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:05:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:56,552 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) [2024-11-16 09:05:56,555 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 [2024-11-16 09:05:56,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:05:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:05:56,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:05:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:05:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:05:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:05:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:05:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:05:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:05:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:05:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:05:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:05:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:05:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:05:56,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:05:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:05:56,734 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:05:56,736 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:06:04,056 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:06:04,057 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:06:04,057 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:06:04,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:06:04,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:06:04,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:06:04,058 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:06:04,279 INFO L? ?]: Removed 1701 outVars from TransFormulas that were not future-live. [2024-11-16 09:06:04,279 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:06:04,336 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:06:04,337 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:06:04,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:04 BoogieIcfgContainer [2024-11-16 09:06:04,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:06:04,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:06:04,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:06:04,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:06:04,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:05:52" (1/3) ... [2024-11-16 09:06:04,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72594e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:04, skipping insertion in model container [2024-11-16 09:06:04,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:05:55" (2/3) ... [2024-11-16 09:06:04,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72594e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:06:04, skipping insertion in model container [2024-11-16 09:06:04,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:06:04" (3/3) ... [2024-11-16 09:06:04,347 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.03.cil-2.c [2024-11-16 09:06:04,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:06:04,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:06:04,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:06:04,490 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;@51116f44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:06:04,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:06:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 2371 states, 2345 states have (on average 1.8443496801705757) internal successors, (4325), 2348 states have internal predecessors, (4325), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 09:06:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:04,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:04,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:04,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:04,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:04,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1663287854, now seen corresponding path program 1 times [2024-11-16 09:06:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:04,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473754538] [2024-11-16 09:06:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:04,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:04,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:04,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:05,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:05,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:05,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:05,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:05,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473754538] [2024-11-16 09:06:05,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473754538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:05,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:05,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:06:05,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245555132] [2024-11-16 09:06:05,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:05,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:06:05,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:06:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:06:05,117 INFO L87 Difference]: Start difference. First operand has 2371 states, 2345 states have (on average 1.8443496801705757) internal successors, (4325), 2348 states have internal predecessors, (4325), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-16 09:06:06,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:06,423 INFO L93 Difference]: Finished difference Result 4978 states and 9091 transitions. [2024-11-16 09:06:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:06:06,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:06,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:06,458 INFO L225 Difference]: With dead ends: 4978 [2024-11-16 09:06:06,459 INFO L226 Difference]: Without dead ends: 2546 [2024-11-16 09:06:06,469 INFO L431 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 [2024-11-16 09:06:06,473 INFO L432 NwaCegarLoop]: 4188 mSDtfsCounter, 4576 mSDsluCounter, 12569 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4586 SdHoareTripleChecker+Valid, 16757 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:06,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4586 Valid, 16757 Invalid, 826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:06:06,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-16 09:06:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2460. [2024-11-16 09:06:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2416 states have (on average 1.8137417218543046) internal successors, (4382), 2419 states have internal predecessors, (4382), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:06:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4443 transitions. [2024-11-16 09:06:06,650 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 4443 transitions. Word has length 84 [2024-11-16 09:06:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:06,651 INFO L471 AbstractCegarLoop]: Abstraction has 2460 states and 4443 transitions. [2024-11-16 09:06:06,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-16 09:06:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 4443 transitions. [2024-11-16 09:06:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:06,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:06,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:06,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:06:06,660 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:06,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash 607412908, now seen corresponding path program 1 times [2024-11-16 09:06:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044856175] [2024-11-16 09:06:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:06,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044856175] [2024-11-16 09:06:06,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044856175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:06,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:06,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396686938] [2024-11-16 09:06:06,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:06,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:06,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:06,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:06,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:06,955 INFO L87 Difference]: Start difference. First operand 2460 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:07,769 INFO L93 Difference]: Finished difference Result 2875 states and 5061 transitions. [2024-11-16 09:06:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:07,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:07,783 INFO L225 Difference]: With dead ends: 2875 [2024-11-16 09:06:07,783 INFO L226 Difference]: Without dead ends: 2549 [2024-11-16 09:06:07,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:07,787 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4378 mSDsluCounter, 16286 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4389 SdHoareTripleChecker+Valid, 20388 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:07,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4389 Valid, 20388 Invalid, 679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:06:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2024-11-16 09:06:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2460. [2024-11-16 09:06:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2416 states have (on average 1.8129139072847682) internal successors, (4380), 2419 states have internal predecessors, (4380), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 09:06:07,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4441 transitions. [2024-11-16 09:06:07,888 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 4441 transitions. Word has length 84 [2024-11-16 09:06:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:07,889 INFO L471 AbstractCegarLoop]: Abstraction has 2460 states and 4441 transitions. [2024-11-16 09:06:07,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 4441 transitions. [2024-11-16 09:06:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:07,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:07,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:07,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:06:07,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:07,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash 361099821, now seen corresponding path program 1 times [2024-11-16 09:06:07,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:07,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304737591] [2024-11-16 09:06:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:07,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304737591] [2024-11-16 09:06:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304737591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:08,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:08,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:08,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201900938] [2024-11-16 09:06:08,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:08,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:08,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:08,148 INFO L87 Difference]: Start difference. First operand 2460 states and 4441 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:09,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:09,519 INFO L93 Difference]: Finished difference Result 3076 states and 5344 transitions. [2024-11-16 09:06:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:06:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:09,536 INFO L225 Difference]: With dead ends: 3076 [2024-11-16 09:06:09,537 INFO L226 Difference]: Without dead ends: 2750 [2024-11-16 09:06:09,540 INFO L431 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 [2024-11-16 09:06:09,541 INFO L432 NwaCegarLoop]: 4232 mSDtfsCounter, 4510 mSDsluCounter, 16761 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 20993 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:09,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 20993 Invalid, 1234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:06:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2024-11-16 09:06:09,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2615. [2024-11-16 09:06:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2552 states have (on average 1.7911442006269593) internal successors, (4571), 2556 states have internal predecessors, (4571), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-16 09:06:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 4658 transitions. [2024-11-16 09:06:09,630 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 4658 transitions. Word has length 84 [2024-11-16 09:06:09,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:09,631 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 4658 transitions. [2024-11-16 09:06:09,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 4658 transitions. [2024-11-16 09:06:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:09,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:09,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:09,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:06:09,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:09,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash -246977042, now seen corresponding path program 1 times [2024-11-16 09:06:09,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:09,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810397843] [2024-11-16 09:06:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:09,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:09,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:09,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810397843] [2024-11-16 09:06:09,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810397843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:09,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:09,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60942731] [2024-11-16 09:06:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:09,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:09,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:09,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:09,780 INFO L87 Difference]: Start difference. First operand 2615 states and 4658 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:11,053 INFO L93 Difference]: Finished difference Result 3719 states and 6269 transitions. [2024-11-16 09:06:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:06:11,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:11,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:11,069 INFO L225 Difference]: With dead ends: 3719 [2024-11-16 09:06:11,069 INFO L226 Difference]: Without dead ends: 3238 [2024-11-16 09:06:11,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:06:11,074 INFO L432 NwaCegarLoop]: 4228 mSDtfsCounter, 4640 mSDsluCounter, 16753 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 20981 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:11,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 20981 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:06:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2024-11-16 09:06:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2922. [2024-11-16 09:06:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2823 states have (on average 1.75487070492384) internal successors, (4954), 2829 states have internal predecessors, (4954), 63 states have call successors, (63), 30 states have call predecessors, (63), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:06:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5093 transitions. [2024-11-16 09:06:11,241 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5093 transitions. Word has length 84 [2024-11-16 09:06:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:11,241 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 5093 transitions. [2024-11-16 09:06:11,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5093 transitions. [2024-11-16 09:06:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:11,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:11,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:11,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:06:11,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:11,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1534522893, now seen corresponding path program 1 times [2024-11-16 09:06:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:11,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736318393] [2024-11-16 09:06:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:11,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:11,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:11,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736318393] [2024-11-16 09:06:11,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736318393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:11,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:11,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:11,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198443155] [2024-11-16 09:06:11,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:11,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:11,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:11,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:11,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:11,407 INFO L87 Difference]: Start difference. First operand 2922 states and 5093 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:12,070 INFO L93 Difference]: Finished difference Result 3907 states and 6534 transitions. [2024-11-16 09:06:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:12,083 INFO L225 Difference]: With dead ends: 3907 [2024-11-16 09:06:12,084 INFO L226 Difference]: Without dead ends: 3119 [2024-11-16 09:06:12,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:12,088 INFO L432 NwaCegarLoop]: 4101 mSDtfsCounter, 4376 mSDsluCounter, 16284 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 20385 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:12,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 20385 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:06:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2024-11-16 09:06:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 2922. [2024-11-16 09:06:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2922 states, 2823 states have (on average 1.753099539496989) internal successors, (4949), 2829 states have internal predecessors, (4949), 63 states have call successors, (63), 30 states have call predecessors, (63), 34 states have return successors, (76), 66 states have call predecessors, (76), 63 states have call successors, (76) [2024-11-16 09:06:12,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5088 transitions. [2024-11-16 09:06:12,182 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5088 transitions. Word has length 84 [2024-11-16 09:06:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:12,183 INFO L471 AbstractCegarLoop]: Abstraction has 2922 states and 5088 transitions. [2024-11-16 09:06:12,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5088 transitions. [2024-11-16 09:06:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:12,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:12,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:12,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:06:12,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:12,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1456050674, now seen corresponding path program 1 times [2024-11-16 09:06:12,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:12,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370461972] [2024-11-16 09:06:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:12,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:12,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370461972] [2024-11-16 09:06:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370461972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:12,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:12,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579578934] [2024-11-16 09:06:12,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:12,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:12,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:12,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:12,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:12,346 INFO L87 Difference]: Start difference. First operand 2922 states and 5088 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:13,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:13,567 INFO L93 Difference]: Finished difference Result 4758 states and 7728 transitions. [2024-11-16 09:06:13,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:06:13,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:13,586 INFO L225 Difference]: With dead ends: 4758 [2024-11-16 09:06:13,586 INFO L226 Difference]: Without dead ends: 3970 [2024-11-16 09:06:13,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:06:13,593 INFO L432 NwaCegarLoop]: 4228 mSDtfsCounter, 4554 mSDsluCounter, 16753 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 20981 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:13,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 20981 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:06:13,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2024-11-16 09:06:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3538. [2024-11-16 09:06:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3369 states have (on average 1.696942712971208) internal successors, (5717), 3379 states have internal predecessors, (5717), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:06:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5962 transitions. [2024-11-16 09:06:13,724 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 5962 transitions. Word has length 84 [2024-11-16 09:06:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:13,725 INFO L471 AbstractCegarLoop]: Abstraction has 3538 states and 5962 transitions. [2024-11-16 09:06:13,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 5962 transitions. [2024-11-16 09:06:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:13,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:13,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:13,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:06:13,728 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:13,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash 664236525, now seen corresponding path program 1 times [2024-11-16 09:06:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645898967] [2024-11-16 09:06:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:13,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:13,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645898967] [2024-11-16 09:06:13,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645898967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:13,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:13,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:06:13,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513325264] [2024-11-16 09:06:13,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:13,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:06:13,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:06:13,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:06:13,859 INFO L87 Difference]: Start difference. First operand 3538 states and 5962 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:14,506 INFO L93 Difference]: Finished difference Result 5247 states and 8435 transitions. [2024-11-16 09:06:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:06:14,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:14,531 INFO L225 Difference]: With dead ends: 5247 [2024-11-16 09:06:14,531 INFO L226 Difference]: Without dead ends: 3843 [2024-11-16 09:06:14,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:06:14,541 INFO L432 NwaCegarLoop]: 4101 mSDtfsCounter, 4372 mSDsluCounter, 16284 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 20385 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:14,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 20385 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:06:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2024-11-16 09:06:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3538. [2024-11-16 09:06:14,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3369 states have (on average 1.6942712971208074) internal successors, (5708), 3379 states have internal predecessors, (5708), 105 states have call successors, (105), 54 states have call predecessors, (105), 62 states have return successors, (140), 112 states have call predecessors, (140), 105 states have call successors, (140) [2024-11-16 09:06:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 5953 transitions. [2024-11-16 09:06:14,688 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 5953 transitions. Word has length 84 [2024-11-16 09:06:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:14,688 INFO L471 AbstractCegarLoop]: Abstraction has 3538 states and 5953 transitions. [2024-11-16 09:06:14,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 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) [2024-11-16 09:06:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 5953 transitions. [2024-11-16 09:06:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 09:06:14,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:14,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:14,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:06:14,692 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:14,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash 455538222, now seen corresponding path program 1 times [2024-11-16 09:06:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:14,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825692157] [2024-11-16 09:06:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:06:14,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:14,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825692157] [2024-11-16 09:06:14,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825692157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:14,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:06:14,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:06:14,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338383431] [2024-11-16 09:06:14,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:14,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:06:14,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:14,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:06:14,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:06:14,797 INFO L87 Difference]: Start difference. First operand 3538 states and 5953 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-16 09:06:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:15,860 INFO L93 Difference]: Finished difference Result 6856 states and 10696 transitions. [2024-11-16 09:06:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:06:15,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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 84 [2024-11-16 09:06:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:15,886 INFO L225 Difference]: With dead ends: 6856 [2024-11-16 09:06:15,887 INFO L226 Difference]: Without dead ends: 5453 [2024-11-16 09:06:15,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:06:15,895 INFO L432 NwaCegarLoop]: 4256 mSDtfsCounter, 4683 mSDsluCounter, 12457 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 16713 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:15,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 16713 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:06:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2024-11-16 09:06:16,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 4874. [2024-11-16 09:06:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4542 states have (on average 1.6125055041831793) internal successors, (7324), 4569 states have internal predecessors, (7324), 206 states have call successors, (206), 108 states have call predecessors, (206), 124 states have return successors, (269), 204 states have call predecessors, (269), 206 states have call successors, (269) [2024-11-16 09:06:16,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 7799 transitions. [2024-11-16 09:06:16,088 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 7799 transitions. Word has length 84 [2024-11-16 09:06:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:16,088 INFO L471 AbstractCegarLoop]: Abstraction has 4874 states and 7799 transitions. [2024-11-16 09:06:16,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-16 09:06:16,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 7799 transitions. [2024-11-16 09:06:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:06:16,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:16,094 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:16,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:06:16,095 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:16,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1244183657, now seen corresponding path program 1 times [2024-11-16 09:06:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662861817] [2024-11-16 09:06:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:06:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:06:16,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662861817] [2024-11-16 09:06:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662861817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:16,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593644651] [2024-11-16 09:06:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:16,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:16,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:16,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:16,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:06:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:16,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:16,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:06:16,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:16,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593644651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:16,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:16,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:06:16,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455366520] [2024-11-16 09:06:16,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:16,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:16,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:16,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:16,504 INFO L87 Difference]: Start difference. First operand 4874 states and 7799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:16,859 INFO L93 Difference]: Finished difference Result 10243 states and 15363 transitions. [2024-11-16 09:06:16,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:16,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:06:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:16,892 INFO L225 Difference]: With dead ends: 10243 [2024-11-16 09:06:16,892 INFO L226 Difference]: Without dead ends: 7504 [2024-11-16 09:06:16,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:16,903 INFO L432 NwaCegarLoop]: 4243 mSDtfsCounter, 4156 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:16,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 4460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2024-11-16 09:06:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7429. [2024-11-16 09:06:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7429 states, 6789 states have (on average 1.5402857563705994) internal successors, (10457), 6841 states have internal predecessors, (10457), 390 states have call successors, (390), 216 states have call predecessors, (390), 248 states have return successors, (509), 379 states have call predecessors, (509), 390 states have call successors, (509) [2024-11-16 09:06:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7429 states to 7429 states and 11356 transitions. [2024-11-16 09:06:17,226 INFO L78 Accepts]: Start accepts. Automaton has 7429 states and 11356 transitions. Word has length 139 [2024-11-16 09:06:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:17,227 INFO L471 AbstractCegarLoop]: Abstraction has 7429 states and 11356 transitions. [2024-11-16 09:06:17,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7429 states and 11356 transitions. [2024-11-16 09:06:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:06:17,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:17,237 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:17,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:06:17,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:17,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:17,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash 276746351, now seen corresponding path program 1 times [2024-11-16 09:06:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:17,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244802092] [2024-11-16 09:06:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:17,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:06:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:06:17,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:17,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244802092] [2024-11-16 09:06:17,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244802092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:17,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788296182] [2024-11-16 09:06:17,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:17,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:17,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:17,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:17,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:06:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:17,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:17,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:06:17,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788296182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:17,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:17,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:06:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583857192] [2024-11-16 09:06:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:17,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:17,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:17,837 INFO L87 Difference]: Start difference. First operand 7429 states and 11356 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:18,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:18,515 INFO L93 Difference]: Finished difference Result 17848 states and 26028 transitions. [2024-11-16 09:06:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:18,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:06:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:18,564 INFO L225 Difference]: With dead ends: 17848 [2024-11-16 09:06:18,564 INFO L226 Difference]: Without dead ends: 12554 [2024-11-16 09:06:18,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:18,585 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4150 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:18,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4150 Valid, 4418 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12554 states. [2024-11-16 09:06:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12554 to 12407. [2024-11-16 09:06:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12407 states, 11153 states have (on average 1.4829193938850533) internal successors, (16539), 11255 states have internal predecessors, (16539), 756 states have call successors, (756), 432 states have call predecessors, (756), 496 states have return successors, (987), 727 states have call predecessors, (987), 756 states have call successors, (987) [2024-11-16 09:06:19,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12407 states to 12407 states and 18282 transitions. [2024-11-16 09:06:19,488 INFO L78 Accepts]: Start accepts. Automaton has 12407 states and 18282 transitions. Word has length 139 [2024-11-16 09:06:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:19,488 INFO L471 AbstractCegarLoop]: Abstraction has 12407 states and 18282 transitions. [2024-11-16 09:06:19,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 12407 states and 18282 transitions. [2024-11-16 09:06:19,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:06:19,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:19,503 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:19,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:06:19,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 09:06:19,705 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:19,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:19,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2049056523, now seen corresponding path program 1 times [2024-11-16 09:06:19,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639596695] [2024-11-16 09:06:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:19,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:06:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:06:19,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:19,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639596695] [2024-11-16 09:06:19,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639596695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519010581] [2024-11-16 09:06:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:19,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:19,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:19,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:06:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:19,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:19,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:06:20,010 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519010581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:20,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:20,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:06:20,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417229805] [2024-11-16 09:06:20,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:20,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:20,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:20,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:20,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:20,013 INFO L87 Difference]: Start difference. First operand 12407 states and 18282 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:20,928 INFO L93 Difference]: Finished difference Result 32614 states and 46712 transitions. [2024-11-16 09:06:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:20,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 139 [2024-11-16 09:06:20,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:21,001 INFO L225 Difference]: With dead ends: 32614 [2024-11-16 09:06:21,001 INFO L226 Difference]: Without dead ends: 22342 [2024-11-16 09:06:21,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:21,033 INFO L432 NwaCegarLoop]: 4243 mSDtfsCounter, 4162 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:21,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:21,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22342 states. [2024-11-16 09:06:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22342 to 22051. [2024-11-16 09:06:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22051 states, 19589 states have (on average 1.4448414926744602) internal successors, (28303), 19791 states have internal predecessors, (28303), 1468 states have call successors, (1468), 864 states have call predecessors, (1468), 992 states have return successors, (1923), 1403 states have call predecessors, (1923), 1468 states have call successors, (1923) [2024-11-16 09:06:22,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22051 states to 22051 states and 31694 transitions. [2024-11-16 09:06:22,104 INFO L78 Accepts]: Start accepts. Automaton has 22051 states and 31694 transitions. Word has length 139 [2024-11-16 09:06:22,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:22,104 INFO L471 AbstractCegarLoop]: Abstraction has 22051 states and 31694 transitions. [2024-11-16 09:06:22,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:06:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 22051 states and 31694 transitions. [2024-11-16 09:06:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-16 09:06:22,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:22,126 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:22,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:06:22,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:22,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:22,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:22,328 INFO L85 PathProgramCache]: Analyzing trace with hash -306554757, now seen corresponding path program 1 times [2024-11-16 09:06:22,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:22,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316943694] [2024-11-16 09:06:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:22,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:06:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:06:22,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316943694] [2024-11-16 09:06:22,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316943694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822363309] [2024-11-16 09:06:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:22,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:22,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:22,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:22,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:06:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:22,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:22,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:22,608 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 09:06:22,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:22,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822363309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:22,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:22,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:22,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150374584] [2024-11-16 09:06:22,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:22,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:22,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:22,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:22,612 INFO L87 Difference]: Start difference. First operand 22051 states and 31694 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:06:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:24,563 INFO L93 Difference]: Finished difference Result 60259 states and 85917 transitions. [2024-11-16 09:06:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 139 [2024-11-16 09:06:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:24,739 INFO L225 Difference]: With dead ends: 60259 [2024-11-16 09:06:24,739 INFO L226 Difference]: Without dead ends: 40344 [2024-11-16 09:06:24,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:24,801 INFO L432 NwaCegarLoop]: 4413 mSDtfsCounter, 205 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 8612 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:24,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 8612 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40344 states. [2024-11-16 09:06:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40344 to 40344. [2024-11-16 09:06:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40344 states, 35643 states have (on average 1.4212047246303623) internal successors, (50656), 35974 states have internal predecessors, (50656), 2753 states have call successors, (2753), 1690 states have call predecessors, (2753), 1946 states have return successors, (4082), 2695 states have call predecessors, (4082), 2753 states have call successors, (4082) [2024-11-16 09:06:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40344 states to 40344 states and 57491 transitions. [2024-11-16 09:06:26,881 INFO L78 Accepts]: Start accepts. Automaton has 40344 states and 57491 transitions. Word has length 139 [2024-11-16 09:06:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:26,883 INFO L471 AbstractCegarLoop]: Abstraction has 40344 states and 57491 transitions. [2024-11-16 09:06:26,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:06:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 40344 states and 57491 transitions. [2024-11-16 09:06:26,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:06:26,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:26,983 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:27,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:06:27,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:27,185 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:27,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash -410521785, now seen corresponding path program 1 times [2024-11-16 09:06:27,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:27,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15284531] [2024-11-16 09:06:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:06:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:06:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:06:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:06:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-16 09:06:27,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:27,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15284531] [2024-11-16 09:06:27,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15284531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:27,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858575536] [2024-11-16 09:06:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:27,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:27,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:27,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:27,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:06:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:27,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:27,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 09:06:27,601 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:27,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858575536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:27,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:27,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:27,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664937890] [2024-11-16 09:06:27,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:27,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:27,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:27,606 INFO L87 Difference]: Start difference. First operand 40344 states and 57491 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:06:29,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:29,806 INFO L93 Difference]: Finished difference Result 66805 states and 95235 transitions. [2024-11-16 09:06:29,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:29,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 204 [2024-11-16 09:06:29,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:29,952 INFO L225 Difference]: With dead ends: 66805 [2024-11-16 09:06:29,953 INFO L226 Difference]: Without dead ends: 36680 [2024-11-16 09:06:30,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:30,117 INFO L432 NwaCegarLoop]: 4198 mSDtfsCounter, 4118 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 4242 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:30,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 4242 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36680 states. [2024-11-16 09:06:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36680 to 27868. [2024-11-16 09:06:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27868 states, 24743 states have (on average 1.3988602837166066) internal successors, (34612), 24918 states have internal predecessors, (34612), 1809 states have call successors, (1809), 1186 states have call predecessors, (1809), 1314 states have return successors, (2418), 1771 states have call predecessors, (2418), 1809 states have call successors, (2418) [2024-11-16 09:06:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27868 states to 27868 states and 38839 transitions. [2024-11-16 09:06:31,808 INFO L78 Accepts]: Start accepts. Automaton has 27868 states and 38839 transitions. Word has length 204 [2024-11-16 09:06:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:31,809 INFO L471 AbstractCegarLoop]: Abstraction has 27868 states and 38839 transitions. [2024-11-16 09:06:31,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:06:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 27868 states and 38839 transitions. [2024-11-16 09:06:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:06:31,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:31,846 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:31,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 09:06:32,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:06:32,051 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:32,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash -725471831, now seen corresponding path program 1 times [2024-11-16 09:06:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:32,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912214017] [2024-11-16 09:06:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:06:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:06:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:06:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:06:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:06:32,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:32,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912214017] [2024-11-16 09:06:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912214017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873042859] [2024-11-16 09:06:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:32,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:32,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:32,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:32,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:06:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:32,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:32,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 09:06:32,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:32,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873042859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:32,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:32,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164315077] [2024-11-16 09:06:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:32,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:32,405 INFO L87 Difference]: Start difference. First operand 27868 states and 38839 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:06:34,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:34,225 INFO L93 Difference]: Finished difference Result 56227 states and 77785 transitions. [2024-11-16 09:06:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:34,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 204 [2024-11-16 09:06:34,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:34,327 INFO L225 Difference]: With dead ends: 56227 [2024-11-16 09:06:34,327 INFO L226 Difference]: Without dead ends: 30502 [2024-11-16 09:06:34,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:34,380 INFO L432 NwaCegarLoop]: 4205 mSDtfsCounter, 4176 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4176 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:34,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4176 Valid, 4248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30502 states. [2024-11-16 09:06:36,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30502 to 30502. [2024-11-16 09:06:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30502 states, 27173 states have (on average 1.3689323961285098) internal successors, (37198), 27348 states have internal predecessors, (37198), 1867 states have call successors, (1867), 1332 states have call predecessors, (1867), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:06:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30502 states to 30502 states and 41541 transitions. [2024-11-16 09:06:36,516 INFO L78 Accepts]: Start accepts. Automaton has 30502 states and 41541 transitions. Word has length 204 [2024-11-16 09:06:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:36,518 INFO L471 AbstractCegarLoop]: Abstraction has 30502 states and 41541 transitions. [2024-11-16 09:06:36,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:06:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 30502 states and 41541 transitions. [2024-11-16 09:06:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 09:06:36,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:36,595 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:36,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 09:06:36,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:36,797 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:36,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:36,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1706830419, now seen corresponding path program 1 times [2024-11-16 09:06:36,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:36,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955848817] [2024-11-16 09:06:36,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:36,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 09:06:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:06:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-16 09:06:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 09:06:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:36,994 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 09:06:36,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:36,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955848817] [2024-11-16 09:06:36,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955848817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:36,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230882283] [2024-11-16 09:06:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:36,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:36,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:36,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:37,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 09:06:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:37,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:06:37,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-16 09:06:37,319 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:37,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230882283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:37,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:37,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:37,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217580043] [2024-11-16 09:06:37,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:37,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:37,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:37,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:37,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:37,321 INFO L87 Difference]: Start difference. First operand 30502 states and 41541 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:06:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:38,982 INFO L93 Difference]: Finished difference Result 54582 states and 73241 transitions. [2024-11-16 09:06:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 204 [2024-11-16 09:06:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:39,098 INFO L225 Difference]: With dead ends: 54582 [2024-11-16 09:06:39,099 INFO L226 Difference]: Without dead ends: 32346 [2024-11-16 09:06:39,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:39,145 INFO L432 NwaCegarLoop]: 4258 mSDtfsCounter, 4127 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4482 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:39,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 4482 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32346 states. [2024-11-16 09:06:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32346 to 30238. [2024-11-16 09:06:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30238 states, 26909 states have (on average 1.3562005277044855) internal successors, (36494), 27084 states have internal predecessors, (36494), 1867 states have call successors, (1867), 1332 states have call predecessors, (1867), 1460 states have return successors, (2476), 1829 states have call predecessors, (2476), 1867 states have call successors, (2476) [2024-11-16 09:06:41,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30238 states to 30238 states and 40837 transitions. [2024-11-16 09:06:41,164 INFO L78 Accepts]: Start accepts. Automaton has 30238 states and 40837 transitions. Word has length 204 [2024-11-16 09:06:41,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:41,164 INFO L471 AbstractCegarLoop]: Abstraction has 30238 states and 40837 transitions. [2024-11-16 09:06:41,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:06:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 30238 states and 40837 transitions. [2024-11-16 09:06:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:06:41,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:41,198 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:41,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 09:06:41,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:41,399 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:41,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1774434318, now seen corresponding path program 1 times [2024-11-16 09:06:41,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:41,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728890431] [2024-11-16 09:06:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:06:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 09:06:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 09:06:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 09:06:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728890431] [2024-11-16 09:06:41,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728890431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623914852] [2024-11-16 09:06:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:41,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:41,571 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:41,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 09:06:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:41,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:41,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:06:41,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:41,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623914852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:41,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:41,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:41,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329103820] [2024-11-16 09:06:41,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:41,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:41,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:41,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:41,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:41,735 INFO L87 Difference]: Start difference. First operand 30238 states and 40837 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:06:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:06:44,695 INFO L93 Difference]: Finished difference Result 85044 states and 113863 transitions. [2024-11-16 09:06:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:06:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 205 [2024-11-16 09:06:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:06:44,855 INFO L225 Difference]: With dead ends: 85044 [2024-11-16 09:06:44,856 INFO L226 Difference]: Without dead ends: 56949 [2024-11-16 09:06:44,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:44,909 INFO L432 NwaCegarLoop]: 4405 mSDtfsCounter, 202 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 8597 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:06:44,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 8597 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:06:44,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56949 states. [2024-11-16 09:06:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56949 to 56946. [2024-11-16 09:06:48,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56946 states, 50403 states have (on average 1.32984147768982) internal successors, (67028), 50752 states have internal predecessors, (67028), 3649 states have call successors, (3649), 2636 states have call predecessors, (3649), 2892 states have return successors, (5820), 3573 states have call predecessors, (5820), 3649 states have call successors, (5820) [2024-11-16 09:06:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56946 states to 56946 states and 76497 transitions. [2024-11-16 09:06:48,535 INFO L78 Accepts]: Start accepts. Automaton has 56946 states and 76497 transitions. Word has length 205 [2024-11-16 09:06:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:06:48,536 INFO L471 AbstractCegarLoop]: Abstraction has 56946 states and 76497 transitions. [2024-11-16 09:06:48,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:06:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 56946 states and 76497 transitions. [2024-11-16 09:06:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 09:06:48,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:06:48,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:06:48,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 09:06:48,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 09:06:48,791 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:06:48,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:06:48,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1567774617, now seen corresponding path program 1 times [2024-11-16 09:06:48,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:06:48,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348300107] [2024-11-16 09:06:48,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:06:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:06:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 09:06:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 09:06:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 09:06:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:06:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:06:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 09:06:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 09:06:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:06:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-16 09:06:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 09:06:48,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:06:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348300107] [2024-11-16 09:06:48,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348300107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:06:48,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511576264] [2024-11-16 09:06:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:06:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:06:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:06:48,945 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:06:48,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 09:06:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:06:49,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:06:49,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:06:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 09:06:49,198 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:06:49,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511576264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:06:49,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:06:49,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:06:49,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479763371] [2024-11-16 09:06:49,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:06:49,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:06:49,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:06:49,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:06:49,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:06:49,201 INFO L87 Difference]: Start difference. First operand 56946 states and 76497 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)