./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label48+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_label48+token_ring.12.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 12040a15adbfbac5c2e9f20bae26c10925cfaa6501d267b475499f3f937f66c2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:58:56,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:58:56,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:58:56,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:58:56,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:58:56,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:58:56,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:58:56,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:58:56,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:58:56,450 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:58:56,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:58:56,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:58:56,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:58:56,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:58:56,451 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:58:56,452 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:58:56,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:58:56,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:58:56,453 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 12040a15adbfbac5c2e9f20bae26c10925cfaa6501d267b475499f3f937f66c2 [2025-03-08 06:58:56,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:58:56,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:58:56,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:58:56,702 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:58:56,702 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:58:56,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label48+token_ring.12.cil-2.c [2025-03-08 06:58:57,900 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f6cee8c/d44721d331454236a1bf65d4af33ad11/FLAG8017eac2b [2025-03-08 06:58:58,408 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:58:58,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label48+token_ring.12.cil-2.c [2025-03-08 06:58:58,452 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f6cee8c/d44721d331454236a1bf65d4af33ad11/FLAG8017eac2b [2025-03-08 06:58:58,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f6cee8c/d44721d331454236a1bf65d4af33ad11 [2025-03-08 06:58:58,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:58:58,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:58:58,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:58:58,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:58:58,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:58:58,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:58:58" (1/1) ... [2025-03-08 06:58:58,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be82d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:58:58, skipping insertion in model container [2025-03-08 06:58:58,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:58:58" (1/1) ... [2025-03-08 06:58:58,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:58:59,655 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_label48+token_ring.12.cil-2.c[375709,375722] [2025-03-08 06:58:59,687 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_label48+token_ring.12.cil-2.c[383339,383352] [2025-03-08 06:58:59,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:58:59,947 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:59:00,477 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_label48+token_ring.12.cil-2.c[375709,375722] [2025-03-08 06:59:00,483 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_label48+token_ring.12.cil-2.c[383339,383352] [2025-03-08 06:59:00,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:59:00,553 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:59:00,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00 WrapperNode [2025-03-08 06:59:00,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:59:00,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:59:00,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:59:00,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:59:00,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:00,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:00,927 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13185 [2025-03-08 06:59:00,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:59:00,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:59:00,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:59:00,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:59:00,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:00,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:00,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,169 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]. [2025-03-08 06:59:01,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,356 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:59:01,461 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:59:01,461 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:59:01,462 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:59:01,462 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (1/1) ... [2025-03-08 06:59:01,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:59:01,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:59:01,517 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) [2025-03-08 06:59:01,522 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 [2025-03-08 06:59:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:59:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 06:59:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 06:59:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 06:59:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 06:59:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 06:59:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 06:59:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 06:59:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 06:59:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 06:59:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 06:59:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 06:59:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 06:59:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:59:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:59:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:59:01,641 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:59:01,642 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:59:07,839 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-03-08 06:59:07,840 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-03-08 06:59:07,840 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-03-08 06:59:07,841 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-03-08 06:59:07,841 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-03-08 06:59:07,842 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-03-08 06:59:07,842 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-03-08 06:59:08,097 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2025-03-08 06:59:08,099 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:59:08,153 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:59:08,153 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:59:08,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:59:08 BoogieIcfgContainer [2025-03-08 06:59:08,154 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:59:08,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:59:08,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:59:08,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:59:08,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:58:58" (1/3) ... [2025-03-08 06:59:08,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4854d2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:59:08, skipping insertion in model container [2025-03-08 06:59:08,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:59:00" (2/3) ... [2025-03-08 06:59:08,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4854d2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:59:08, skipping insertion in model container [2025-03-08 06:59:08,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:59:08" (3/3) ... [2025-03-08 06:59:08,161 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.12.cil-2.c [2025-03-08 06:59:08,172 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:59:08,175 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label48+token_ring.12.cil-2.c that has 7 procedures, 2563 locations, 1 initial locations, 16 loop locations, and 2 error locations. [2025-03-08 06:59:08,276 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:59:08,286 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;@f3cdc1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:59:08,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 06:59:08,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 2563 states, 2529 states have (on average 1.8366943455911426) internal successors, (4645), 2531 states have internal predecessors, (4645), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-08 06:59:08,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:08,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:08,312 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:08,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:08,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:08,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1641891274, now seen corresponding path program 1 times [2025-03-08 06:59:08,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:08,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455669339] [2025-03-08 06:59:08,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:08,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:08,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:08,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:08,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:08,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:08,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455669339] [2025-03-08 06:59:08,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455669339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:08,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:08,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094504893] [2025-03-08 06:59:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:08,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:08,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:08,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:08,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:08,937 INFO L87 Difference]: Start difference. First operand has 2563 states, 2529 states have (on average 1.8366943455911426) internal successors, (4645), 2531 states have internal predecessors, (4645), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:09,712 INFO L93 Difference]: Finished difference Result 5512 states and 10033 transitions. [2025-03-08 06:59:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:59:09,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:09,741 INFO L225 Difference]: With dead ends: 5512 [2025-03-08 06:59:09,741 INFO L226 Difference]: Without dead ends: 2899 [2025-03-08 06:59:09,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:09,757 INFO L435 NwaCegarLoop]: 4488 mSDtfsCounter, 5174 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5194 SdHoareTripleChecker+Valid, 13723 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:09,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5194 Valid, 13723 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:09,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2025-03-08 06:59:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2870. [2025-03-08 06:59:09,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2808 states have (on average 1.7995014245014245) internal successors, (5053), 2811 states have internal predecessors, (5053), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2025-03-08 06:59:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5148 transitions. [2025-03-08 06:59:09,897 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5148 transitions. Word has length 176 [2025-03-08 06:59:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:09,897 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 5148 transitions. [2025-03-08 06:59:09,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5148 transitions. [2025-03-08 06:59:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:09,901 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:09,901 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:09,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:59:09,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:09,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 490598796, now seen corresponding path program 1 times [2025-03-08 06:59:09,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:09,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169939611] [2025-03-08 06:59:09,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:09,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:09,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:09,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:09,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:10,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169939611] [2025-03-08 06:59:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169939611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:10,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880461520] [2025-03-08 06:59:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:10,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:10,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:10,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:10,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:10,223 INFO L87 Difference]: Start difference. First operand 2870 states and 5148 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:10,579 INFO L93 Difference]: Finished difference Result 3677 states and 6457 transitions. [2025-03-08 06:59:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:10,591 INFO L225 Difference]: With dead ends: 3677 [2025-03-08 06:59:10,592 INFO L226 Difference]: Without dead ends: 2948 [2025-03-08 06:59:10,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:10,595 INFO L435 NwaCegarLoop]: 4407 mSDtfsCounter, 4769 mSDsluCounter, 8659 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 13066 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:10,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4789 Valid, 13066 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:59:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2025-03-08 06:59:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2870. [2025-03-08 06:59:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2808 states have (on average 1.7987891737891737) internal successors, (5051), 2811 states have internal predecessors, (5051), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2025-03-08 06:59:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5146 transitions. [2025-03-08 06:59:10,674 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5146 transitions. Word has length 176 [2025-03-08 06:59:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:10,675 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 5146 transitions. [2025-03-08 06:59:10,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5146 transitions. [2025-03-08 06:59:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:10,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:10,678 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:10,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:59:10,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:10,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:10,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1437765739, now seen corresponding path program 1 times [2025-03-08 06:59:10,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:10,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177930507] [2025-03-08 06:59:10,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:10,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:10,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:10,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:10,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177930507] [2025-03-08 06:59:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177930507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:10,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:10,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:10,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28745983] [2025-03-08 06:59:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:10,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:10,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:10,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:10,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:10,868 INFO L87 Difference]: Start difference. First operand 2870 states and 5146 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:11,585 INFO L93 Difference]: Finished difference Result 4074 states and 7088 transitions. [2025-03-08 06:59:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:11,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:11,602 INFO L225 Difference]: With dead ends: 4074 [2025-03-08 06:59:11,603 INFO L226 Difference]: Without dead ends: 3345 [2025-03-08 06:59:11,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:11,607 INFO L435 NwaCegarLoop]: 4501 mSDtfsCounter, 5138 mSDsluCounter, 13653 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5158 SdHoareTripleChecker+Valid, 18154 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:11,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5158 Valid, 18154 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2025-03-08 06:59:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 3216. [2025-03-08 06:59:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3126 states have (on average 1.7747920665387076) internal successors, (5548), 3130 states have internal predecessors, (5548), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (72), 69 states have call predecessors, (72), 68 states have call successors, (72) [2025-03-08 06:59:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5688 transitions. [2025-03-08 06:59:11,702 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5688 transitions. Word has length 176 [2025-03-08 06:59:11,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:11,702 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 5688 transitions. [2025-03-08 06:59:11,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5688 transitions. [2025-03-08 06:59:11,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:11,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:11,704 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:11,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:59:11,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:11,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2133911124, now seen corresponding path program 1 times [2025-03-08 06:59:11,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:11,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535292219] [2025-03-08 06:59:11,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:11,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:11,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:11,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:11,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:11,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:11,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:11,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535292219] [2025-03-08 06:59:11,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535292219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:11,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:11,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:11,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052277767] [2025-03-08 06:59:11,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:11,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:11,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:11,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:11,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:11,863 INFO L87 Difference]: Start difference. First operand 3216 states and 5688 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:12,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:12,612 INFO L93 Difference]: Finished difference Result 5179 states and 8847 transitions. [2025-03-08 06:59:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:12,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:12,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:12,632 INFO L225 Difference]: With dead ends: 5179 [2025-03-08 06:59:12,632 INFO L226 Difference]: Without dead ends: 4104 [2025-03-08 06:59:12,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:12,639 INFO L435 NwaCegarLoop]: 4724 mSDtfsCounter, 5104 mSDsluCounter, 14227 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5124 SdHoareTripleChecker+Valid, 18951 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:12,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5124 Valid, 18951 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:12,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2025-03-08 06:59:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 3955. [2025-03-08 06:59:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3955 states, 3807 states have (on average 1.7412660887838194) internal successors, (6629), 3815 states have internal predecessors, (6629), 110 states have call successors, (110), 30 states have call predecessors, (110), 36 states have return successors, (126), 113 states have call predecessors, (126), 110 states have call successors, (126) [2025-03-08 06:59:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3955 states to 3955 states and 6865 transitions. [2025-03-08 06:59:12,751 INFO L78 Accepts]: Start accepts. Automaton has 3955 states and 6865 transitions. Word has length 176 [2025-03-08 06:59:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:12,751 INFO L471 AbstractCegarLoop]: Abstraction has 3955 states and 6865 transitions. [2025-03-08 06:59:12,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 6865 transitions. [2025-03-08 06:59:12,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:12,754 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:12,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:12,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:59:12,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:12,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:12,756 INFO L85 PathProgramCache]: Analyzing trace with hash -448011189, now seen corresponding path program 1 times [2025-03-08 06:59:12,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:12,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215643630] [2025-03-08 06:59:12,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:12,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:12,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:12,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:12,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:12,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215643630] [2025-03-08 06:59:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215643630] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:13,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450842528] [2025-03-08 06:59:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:13,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:13,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:13,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:13,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:13,028 INFO L87 Difference]: Start difference. First operand 3955 states and 6865 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:13,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:13,871 INFO L93 Difference]: Finished difference Result 7572 states and 12734 transitions. [2025-03-08 06:59:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:13,898 INFO L225 Difference]: With dead ends: 7572 [2025-03-08 06:59:13,898 INFO L226 Difference]: Without dead ends: 5758 [2025-03-08 06:59:13,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:13,908 INFO L435 NwaCegarLoop]: 4721 mSDtfsCounter, 5099 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 18939 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:13,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 18939 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2025-03-08 06:59:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5568. [2025-03-08 06:59:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5298 states have (on average 1.7064930162325407) internal successors, (9041), 5320 states have internal predecessors, (9041), 194 states have call successors, (194), 54 states have call predecessors, (194), 74 states have return successors, (258), 201 states have call predecessors, (258), 194 states have call successors, (258) [2025-03-08 06:59:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 9493 transitions. [2025-03-08 06:59:14,104 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 9493 transitions. Word has length 176 [2025-03-08 06:59:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:14,105 INFO L471 AbstractCegarLoop]: Abstraction has 5568 states and 9493 transitions. [2025-03-08 06:59:14,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 9493 transitions. [2025-03-08 06:59:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:14,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:14,108 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:14,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:59:14,109 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:14,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:14,109 INFO L85 PathProgramCache]: Analyzing trace with hash -255079988, now seen corresponding path program 1 times [2025-03-08 06:59:14,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:14,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749952864] [2025-03-08 06:59:14,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:14,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:14,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:14,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:14,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:14,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:14,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:14,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749952864] [2025-03-08 06:59:14,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749952864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:14,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:14,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204581421] [2025-03-08 06:59:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:14,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:14,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:14,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:14,276 INFO L87 Difference]: Start difference. First operand 5568 states and 9493 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:15,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:15,067 INFO L93 Difference]: Finished difference Result 12879 states and 21592 transitions. [2025-03-08 06:59:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:15,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:15,122 INFO L225 Difference]: With dead ends: 12879 [2025-03-08 06:59:15,122 INFO L226 Difference]: Without dead ends: 9452 [2025-03-08 06:59:15,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:15,137 INFO L435 NwaCegarLoop]: 4718 mSDtfsCounter, 5094 mSDsluCounter, 14209 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5114 SdHoareTripleChecker+Valid, 18927 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:15,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5114 Valid, 18927 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2025-03-08 06:59:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 9181. [2025-03-08 06:59:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 8649 states have (on average 1.6858596369522487) internal successors, (14581), 8717 states have internal predecessors, (14581), 362 states have call successors, (362), 102 states have call predecessors, (362), 168 states have return successors, (618), 377 states have call predecessors, (618), 362 states have call successors, (618) [2025-03-08 06:59:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 15561 transitions. [2025-03-08 06:59:15,370 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 15561 transitions. Word has length 176 [2025-03-08 06:59:15,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:15,371 INFO L471 AbstractCegarLoop]: Abstraction has 9181 states and 15561 transitions. [2025-03-08 06:59:15,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 15561 transitions. [2025-03-08 06:59:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:15,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:15,378 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:15,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:59:15,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:15,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash -387403733, now seen corresponding path program 1 times [2025-03-08 06:59:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455476506] [2025-03-08 06:59:15,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:15,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:15,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:15,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:15,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:15,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:15,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455476506] [2025-03-08 06:59:15,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455476506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:15,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:15,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:15,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856238654] [2025-03-08 06:59:15,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:15,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:15,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:15,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:15,537 INFO L87 Difference]: Start difference. First operand 9181 states and 15561 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:16,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:16,477 INFO L93 Difference]: Finished difference Result 24982 states and 42538 transitions. [2025-03-08 06:59:16,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:16,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:16,540 INFO L225 Difference]: With dead ends: 24982 [2025-03-08 06:59:16,540 INFO L226 Difference]: Without dead ends: 17942 [2025-03-08 06:59:16,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:16,568 INFO L435 NwaCegarLoop]: 4715 mSDtfsCounter, 5089 mSDsluCounter, 14200 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 18915 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:16,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 18915 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17942 states. [2025-03-08 06:59:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17942 to 17514. [2025-03-08 06:59:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17514 states, 16404 states have (on average 1.6889173372348207) internal successors, (27705), 16618 states have internal predecessors, (27705), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-03-08 06:59:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17514 states to 17514 states and 30125 transitions. [2025-03-08 06:59:17,025 INFO L78 Accepts]: Start accepts. Automaton has 17514 states and 30125 transitions. Word has length 176 [2025-03-08 06:59:17,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:17,025 INFO L471 AbstractCegarLoop]: Abstraction has 17514 states and 30125 transitions. [2025-03-08 06:59:17,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:17,025 INFO L276 IsEmpty]: Start isEmpty. Operand 17514 states and 30125 transitions. [2025-03-08 06:59:17,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:17,033 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:17,033 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:17,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:59:17,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:17,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash 578159084, now seen corresponding path program 1 times [2025-03-08 06:59:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708242924] [2025-03-08 06:59:17,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:17,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:17,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:17,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:17,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:17,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:17,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708242924] [2025-03-08 06:59:17,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708242924] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:17,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:17,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:17,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56757647] [2025-03-08 06:59:17,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:17,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:17,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:17,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:17,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:17,143 INFO L87 Difference]: Start difference. First operand 17514 states and 30125 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:17,840 INFO L93 Difference]: Finished difference Result 37787 states and 66414 transitions. [2025-03-08 06:59:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:17,925 INFO L225 Difference]: With dead ends: 37787 [2025-03-08 06:59:17,925 INFO L226 Difference]: Without dead ends: 22414 [2025-03-08 06:59:17,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:17,973 INFO L435 NwaCegarLoop]: 4394 mSDtfsCounter, 4761 mSDsluCounter, 8634 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4781 SdHoareTripleChecker+Valid, 13028 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:17,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4781 Valid, 13028 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:59:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22414 states. [2025-03-08 06:59:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22414 to 17514. [2025-03-08 06:59:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17514 states, 16404 states have (on average 1.6869056327724945) internal successors, (27672), 16618 states have internal predecessors, (27672), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-03-08 06:59:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17514 states to 17514 states and 30092 transitions. [2025-03-08 06:59:18,484 INFO L78 Accepts]: Start accepts. Automaton has 17514 states and 30092 transitions. Word has length 176 [2025-03-08 06:59:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:18,485 INFO L471 AbstractCegarLoop]: Abstraction has 17514 states and 30092 transitions. [2025-03-08 06:59:18,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 17514 states and 30092 transitions. [2025-03-08 06:59:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:18,493 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:18,493 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:18,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:59:18,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:18,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash -83430389, now seen corresponding path program 1 times [2025-03-08 06:59:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:18,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882199647] [2025-03-08 06:59:18,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:18,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:18,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:18,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:18,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:18,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:18,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882199647] [2025-03-08 06:59:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882199647] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:18,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:18,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214496483] [2025-03-08 06:59:18,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:18,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:18,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:18,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:18,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:18,681 INFO L87 Difference]: Start difference. First operand 17514 states and 30092 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:19,225 INFO L93 Difference]: Finished difference Result 37542 states and 65858 transitions. [2025-03-08 06:59:19,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:19,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:19,298 INFO L225 Difference]: With dead ends: 37542 [2025-03-08 06:59:19,299 INFO L226 Difference]: Without dead ends: 22169 [2025-03-08 06:59:19,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:19,339 INFO L435 NwaCegarLoop]: 4391 mSDtfsCounter, 4758 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4778 SdHoareTripleChecker+Valid, 13020 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:19,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4778 Valid, 13020 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:59:19,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22169 states. [2025-03-08 06:59:19,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22169 to 17514. [2025-03-08 06:59:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17514 states, 16404 states have (on average 1.6848939283101683) internal successors, (27639), 16618 states have internal predecessors, (27639), 698 states have call successors, (698), 198 states have call predecessors, (698), 410 states have return successors, (1722), 729 states have call predecessors, (1722), 698 states have call successors, (1722) [2025-03-08 06:59:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17514 states to 17514 states and 30059 transitions. [2025-03-08 06:59:19,964 INFO L78 Accepts]: Start accepts. Automaton has 17514 states and 30059 transitions. Word has length 176 [2025-03-08 06:59:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:19,964 INFO L471 AbstractCegarLoop]: Abstraction has 17514 states and 30059 transitions. [2025-03-08 06:59:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 17514 states and 30059 transitions. [2025-03-08 06:59:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:19,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:19,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:19,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:59:19,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:19,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash 865059340, now seen corresponding path program 1 times [2025-03-08 06:59:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777790489] [2025-03-08 06:59:19,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:19,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:19,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:19,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:19,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:20,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:20,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777790489] [2025-03-08 06:59:20,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777790489] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:20,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:20,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:20,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009950444] [2025-03-08 06:59:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:20,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:20,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:20,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:20,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:20,136 INFO L87 Difference]: Start difference. First operand 17514 states and 30059 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:21,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:21,572 INFO L93 Difference]: Finished difference Result 52885 states and 92874 transitions. [2025-03-08 06:59:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:21,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:21,706 INFO L225 Difference]: With dead ends: 52885 [2025-03-08 06:59:21,706 INFO L226 Difference]: Without dead ends: 37512 [2025-03-08 06:59:21,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:21,756 INFO L435 NwaCegarLoop]: 4702 mSDtfsCounter, 5068 mSDsluCounter, 14163 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5088 SdHoareTripleChecker+Valid, 18865 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:21,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5088 Valid, 18865 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:59:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37512 states. [2025-03-08 06:59:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37512 to 36853. [2025-03-08 06:59:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36853 states, 34425 states have (on average 1.7041975308641975) internal successors, (58667), 35093 states have internal predecessors, (58667), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-03-08 06:59:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36853 states to 36853 states and 65503 transitions. [2025-03-08 06:59:22,743 INFO L78 Accepts]: Start accepts. Automaton has 36853 states and 65503 transitions. Word has length 176 [2025-03-08 06:59:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:22,743 INFO L471 AbstractCegarLoop]: Abstraction has 36853 states and 65503 transitions. [2025-03-08 06:59:22,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 36853 states and 65503 transitions. [2025-03-08 06:59:22,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:22,755 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:22,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:22,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 06:59:22,756 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:22,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1034203115, now seen corresponding path program 1 times [2025-03-08 06:59:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:22,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438056557] [2025-03-08 06:59:22,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:22,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:22,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:22,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:22,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:22,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:22,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438056557] [2025-03-08 06:59:22,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438056557] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:22,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:22,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:22,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006108700] [2025-03-08 06:59:22,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:22,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:22,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:22,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:22,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:22,849 INFO L87 Difference]: Start difference. First operand 36853 states and 65503 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:24,012 INFO L93 Difference]: Finished difference Result 83992 states and 153902 transitions. [2025-03-08 06:59:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:24,299 INFO L225 Difference]: With dead ends: 83992 [2025-03-08 06:59:24,300 INFO L226 Difference]: Without dead ends: 49280 [2025-03-08 06:59:24,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:24,350 INFO L435 NwaCegarLoop]: 4353 mSDtfsCounter, 4785 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 12940 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:24,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 12940 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:59:24,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49280 states. [2025-03-08 06:59:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49280 to 36853. [2025-03-08 06:59:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36853 states, 34425 states have (on average 1.7023093681917212) internal successors, (58602), 35093 states have internal predecessors, (58602), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-03-08 06:59:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36853 states to 36853 states and 65438 transitions. [2025-03-08 06:59:25,989 INFO L78 Accepts]: Start accepts. Automaton has 36853 states and 65438 transitions. Word has length 176 [2025-03-08 06:59:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 36853 states and 65438 transitions. [2025-03-08 06:59:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 36853 states and 65438 transitions. [2025-03-08 06:59:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:26,001 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:26,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:26,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:59:26,001 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:26,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash -900003284, now seen corresponding path program 1 times [2025-03-08 06:59:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:26,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201907532] [2025-03-08 06:59:26,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:26,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:26,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:26,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:26,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:26,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:26,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201907532] [2025-03-08 06:59:26,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201907532] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:26,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:26,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:26,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809565813] [2025-03-08 06:59:26,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:26,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:26,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:26,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:26,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:26,126 INFO L87 Difference]: Start difference. First operand 36853 states and 65438 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:27,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:27,808 INFO L93 Difference]: Finished difference Result 83261 states and 152310 transitions. [2025-03-08 06:59:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:27,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:27,974 INFO L225 Difference]: With dead ends: 83261 [2025-03-08 06:59:27,974 INFO L226 Difference]: Without dead ends: 48549 [2025-03-08 06:59:28,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:28,055 INFO L435 NwaCegarLoop]: 4383 mSDtfsCounter, 4751 mSDsluCounter, 8615 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4771 SdHoareTripleChecker+Valid, 12998 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:28,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4771 Valid, 12998 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:59:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48549 states. [2025-03-08 06:59:29,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48549 to 36853. [2025-03-08 06:59:29,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36853 states, 34425 states have (on average 1.7004212055192447) internal successors, (58537), 35093 states have internal predecessors, (58537), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-03-08 06:59:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36853 states to 36853 states and 65373 transitions. [2025-03-08 06:59:29,685 INFO L78 Accepts]: Start accepts. Automaton has 36853 states and 65373 transitions. Word has length 176 [2025-03-08 06:59:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:29,685 INFO L471 AbstractCegarLoop]: Abstraction has 36853 states and 65373 transitions. [2025-03-08 06:59:29,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 36853 states and 65373 transitions. [2025-03-08 06:59:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:29,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:29,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:29,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:59:29,695 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:29,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash 977265611, now seen corresponding path program 1 times [2025-03-08 06:59:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:29,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79191453] [2025-03-08 06:59:29,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:29,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:29,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:29,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:29,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:29,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:29,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:29,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79191453] [2025-03-08 06:59:29,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79191453] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:29,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:29,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:29,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647129974] [2025-03-08 06:59:29,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:29,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:29,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:29,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:29,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:29,781 INFO L87 Difference]: Start difference. First operand 36853 states and 65373 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:31,109 INFO L93 Difference]: Finished difference Result 82530 states and 150718 transitions. [2025-03-08 06:59:31,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:31,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:31,266 INFO L225 Difference]: With dead ends: 82530 [2025-03-08 06:59:31,266 INFO L226 Difference]: Without dead ends: 47818 [2025-03-08 06:59:31,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:31,351 INFO L435 NwaCegarLoop]: 4380 mSDtfsCounter, 4748 mSDsluCounter, 8610 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 12990 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:31,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 12990 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:59:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47818 states. [2025-03-08 06:59:32,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47818 to 36853. [2025-03-08 06:59:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36853 states, 34425 states have (on average 1.6985330428467684) internal successors, (58472), 35093 states have internal predecessors, (58472), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 1056 states have return successors, (5466), 1433 states have call predecessors, (5466), 1370 states have call successors, (5466) [2025-03-08 06:59:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36853 states to 36853 states and 65308 transitions. [2025-03-08 06:59:32,870 INFO L78 Accepts]: Start accepts. Automaton has 36853 states and 65308 transitions. Word has length 176 [2025-03-08 06:59:32,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:32,870 INFO L471 AbstractCegarLoop]: Abstraction has 36853 states and 65308 transitions. [2025-03-08 06:59:32,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 36853 states and 65308 transitions. [2025-03-08 06:59:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:32,879 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:32,880 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:32,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:59:32,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:32,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:32,880 INFO L85 PathProgramCache]: Analyzing trace with hash 899275340, now seen corresponding path program 1 times [2025-03-08 06:59:32,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:32,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942688951] [2025-03-08 06:59:32,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:32,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:32,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:32,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:32,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:32,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:32,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942688951] [2025-03-08 06:59:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942688951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:32,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:32,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:59:32,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53298466] [2025-03-08 06:59:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:32,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:59:32,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:32,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:59:32,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:32,969 INFO L87 Difference]: Start difference. First operand 36853 states and 65308 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:35,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:35,829 INFO L93 Difference]: Finished difference Result 122738 states and 224324 transitions. [2025-03-08 06:59:35,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:59:35,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:35,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:36,202 INFO L225 Difference]: With dead ends: 122738 [2025-03-08 06:59:36,202 INFO L226 Difference]: Without dead ends: 88026 [2025-03-08 06:59:36,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:59:36,462 INFO L435 NwaCegarLoop]: 4682 mSDtfsCounter, 5413 mSDsluCounter, 14101 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 18783 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:36,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5446 Valid, 18783 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:59:36,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88026 states. [2025-03-08 06:59:38,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88026 to 81171. [2025-03-08 06:59:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81171 states, 75685 states have (on average 1.7226927396445795) internal successors, (130382), 77747 states have internal predecessors, (130382), 2650 states have call successors, (2650), 774 states have call predecessors, (2650), 2834 states have return successors, (19034), 2777 states have call predecessors, (19034), 2650 states have call successors, (19034) [2025-03-08 06:59:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81171 states to 81171 states and 152066 transitions. [2025-03-08 06:59:39,527 INFO L78 Accepts]: Start accepts. Automaton has 81171 states and 152066 transitions. Word has length 176 [2025-03-08 06:59:39,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:59:39,527 INFO L471 AbstractCegarLoop]: Abstraction has 81171 states and 152066 transitions. [2025-03-08 06:59:39,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:39,527 INFO L276 IsEmpty]: Start isEmpty. Operand 81171 states and 152066 transitions. [2025-03-08 06:59:39,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-03-08 06:59:39,547 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:59:39,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:59:39,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:59:39,548 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:59:39,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:59:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1042903125, now seen corresponding path program 1 times [2025-03-08 06:59:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:59:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499677776] [2025-03-08 06:59:39,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:59:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:59:39,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-03-08 06:59:39,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-03-08 06:59:39,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:59:39,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:59:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:59:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:59:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499677776] [2025-03-08 06:59:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499677776] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:59:39,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:59:39,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:59:39,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194984386] [2025-03-08 06:59:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:59:39,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:59:39,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:59:39,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:59:39,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:59:39,659 INFO L87 Difference]: Start difference. First operand 81171 states and 152066 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 06:59:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:59:43,313 INFO L93 Difference]: Finished difference Result 188658 states and 367130 transitions. [2025-03-08 06:59:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 06:59:43,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 2 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 176 [2025-03-08 06:59:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:59:43,869 INFO L225 Difference]: With dead ends: 188658 [2025-03-08 06:59:43,869 INFO L226 Difference]: Without dead ends: 109628 [2025-03-08 06:59:44,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:59:44,151 INFO L435 NwaCegarLoop]: 4375 mSDtfsCounter, 4742 mSDsluCounter, 8599 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 12974 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:59:44,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4762 Valid, 12974 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:59:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109628 states.