./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 738a2e75c3974a334a4730af8ad8a1bca696e22b6aef9e5670f827b7767c7884 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:04:32,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:04:33,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:04:33,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:04:33,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:04:33,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:04:33,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:04:33,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:04:33,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:04:33,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:04:33,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:04:33,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:04:33,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:04:33,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:04:33,058 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:04:33,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:04:33,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:04:33,059 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:04:33,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:04:33,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:04:33,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:04:33,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:04:33,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:04:33,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:04:33,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:04:33,062 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:04:33,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:04:33,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:04:33,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:04:33,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:04:33,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:04:33,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:04:33,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:04:33,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:04:33,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:04:33,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:04:33,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:04:33,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:04:33,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:04:33,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:04:33,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:04:33,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:04:33,067 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 738a2e75c3974a334a4730af8ad8a1bca696e22b6aef9e5670f827b7767c7884 [2024-11-16 09:04:33,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:04:33,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:04:33,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:04:33,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:04:33,345 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:04:33,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c [2024-11-16 09:04:34,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:04:35,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:04:35,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.01.cil-1.c [2024-11-16 09:04:35,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00463ec23/170c6a010647432fb2b423ec52120af3/FLAG99f237fac [2024-11-16 09:04:35,511 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00463ec23/170c6a010647432fb2b423ec52120af3 [2024-11-16 09:04:35,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:04:35,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:04:35,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:04:35,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:04:35,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:04:35,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:04:35" (1/1) ... [2024-11-16 09:04:35,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a588f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:35, skipping insertion in model container [2024-11-16 09:04:35,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:04:35" (1/1) ... [2024-11-16 09:04:35,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:04:37,133 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_label41+token_ring.01.cil-1.c[376251,376264] [2024-11-16 09:04:37,165 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_label41+token_ring.01.cil-1.c[383339,383352] [2024-11-16 09:04:37,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:04:37,315 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:04:38,141 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_label41+token_ring.01.cil-1.c[376251,376264] [2024-11-16 09:04:38,152 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_label41+token_ring.01.cil-1.c[383339,383352] [2024-11-16 09:04:38,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:04:38,233 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:04:38,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38 WrapperNode [2024-11-16 09:04:38,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:04:38,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:04:38,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:04:38,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:04:38,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,681 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12568 [2024-11-16 09:04:38,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:04:38,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:04:38,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:04:38,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:04:38,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,949 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:04:38,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:38,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,139 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:04:39,386 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:04:39,390 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:04:39,390 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:04:39,391 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (1/1) ... [2024-11-16 09:04:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:04:39,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:39,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:04:39,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:04:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:04:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:04:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:04:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:04:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:04:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:04:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:04:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:04:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:04:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:04:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:04:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:04:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:04:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:04:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:04:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:04:39,646 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:04:39,649 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:04:46,869 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:04:46,871 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:04:46,871 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:04:46,871 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:04:46,871 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:04:46,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:04:46,872 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:04:47,123 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2024-11-16 09:04:47,123 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:04:47,181 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:04:47,182 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:04:47,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:04:47 BoogieIcfgContainer [2024-11-16 09:04:47,183 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:04:47,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:04:47,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:04:47,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:04:47,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:04:35" (1/3) ... [2024-11-16 09:04:47,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc4a973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:04:47, skipping insertion in model container [2024-11-16 09:04:47,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:04:38" (2/3) ... [2024-11-16 09:04:47,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc4a973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:04:47, skipping insertion in model container [2024-11-16 09:04:47,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:04:47" (3/3) ... [2024-11-16 09:04:47,193 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.01.cil-1.c [2024-11-16 09:04:47,209 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:04:47,209 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:04:47,320 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:04:47,327 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;@66a12c78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:04:47,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:04:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 2311 states, 2287 states have (on average 1.8508963707914299) internal successors, (4233), 2290 states have internal predecessors, (4233), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 09:04:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:04:47,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:47,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:47,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:47,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash -743112241, now seen corresponding path program 1 times [2024-11-16 09:04:47,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:47,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573906498] [2024-11-16 09:04:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:47,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:04:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573906498] [2024-11-16 09:04:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573906498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:47,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:04:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:04:47,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495123976] [2024-11-16 09:04:47,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:47,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:04:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:04:47,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:04:47,916 INFO L87 Difference]: Start difference. First operand has 2311 states, 2287 states have (on average 1.8508963707914299) internal successors, (4233), 2290 states have internal predecessors, (4233), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:48,768 INFO L93 Difference]: Finished difference Result 4758 states and 8731 transitions. [2024-11-16 09:04:48,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:04:48,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-16 09:04:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:48,804 INFO L225 Difference]: With dead ends: 4758 [2024-11-16 09:04:48,804 INFO L226 Difference]: Without dead ends: 2384 [2024-11-16 09:04:48,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:04:48,818 INFO L432 NwaCegarLoop]: 4140 mSDtfsCounter, 4338 mSDsluCounter, 12411 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 16551 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:48,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 16551 Invalid, 482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:04:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-16 09:04:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2342. [2024-11-16 09:04:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 2302 states have (on average 1.8271068635968724) internal successors, (4206), 2305 states have internal predecessors, (4206), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2024-11-16 09:04:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 4259 transitions. [2024-11-16 09:04:48,975 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 4259 transitions. Word has length 62 [2024-11-16 09:04:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:48,979 INFO L471 AbstractCegarLoop]: Abstraction has 2342 states and 4259 transitions. [2024-11-16 09:04:48,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 4259 transitions. [2024-11-16 09:04:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:04:48,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:48,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:48,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:04:48,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1238388915, now seen corresponding path program 1 times [2024-11-16 09:04:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906879399] [2024-11-16 09:04:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:04:49,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:49,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906879399] [2024-11-16 09:04:49,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906879399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:49,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:04:49,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:04:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902657039] [2024-11-16 09:04:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:49,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:04:49,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:49,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:04:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:04:49,243 INFO L87 Difference]: Start difference. First operand 2342 states and 4259 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:49,753 INFO L93 Difference]: Finished difference Result 2593 states and 4613 transitions. [2024-11-16 09:04:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:04:49,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-16 09:04:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:49,766 INFO L225 Difference]: With dead ends: 2593 [2024-11-16 09:04:49,767 INFO L226 Difference]: Without dead ends: 2383 [2024-11-16 09:04:49,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:04:49,771 INFO L432 NwaCegarLoop]: 4054 mSDtfsCounter, 4201 mSDsluCounter, 16126 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4210 SdHoareTripleChecker+Valid, 20180 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:49,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4210 Valid, 20180 Invalid, 404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:04:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-16 09:04:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2342. [2024-11-16 09:04:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 2302 states have (on average 1.8262380538662033) internal successors, (4204), 2305 states have internal predecessors, (4204), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2024-11-16 09:04:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 4257 transitions. [2024-11-16 09:04:49,841 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 4257 transitions. Word has length 62 [2024-11-16 09:04:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:49,842 INFO L471 AbstractCegarLoop]: Abstraction has 2342 states and 4257 transitions. [2024-11-16 09:04:49,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 4257 transitions. [2024-11-16 09:04:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:04:49,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:49,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:49,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:04:49,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:49,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:49,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1246148274, now seen corresponding path program 1 times [2024-11-16 09:04:49,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:49,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927627527] [2024-11-16 09:04:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:49,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:49,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:50,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:04:50,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:50,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927627527] [2024-11-16 09:04:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927627527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:04:50,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:04:50,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430763032] [2024-11-16 09:04:50,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:50,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:04:50,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:50,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:04:50,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:04:50,013 INFO L87 Difference]: Start difference. First operand 2342 states and 4257 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:50,778 INFO L93 Difference]: Finished difference Result 2734 states and 4792 transitions. [2024-11-16 09:04:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:04:50,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-16 09:04:50,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:50,789 INFO L225 Difference]: With dead ends: 2734 [2024-11-16 09:04:50,790 INFO L226 Difference]: Without dead ends: 2524 [2024-11-16 09:04:50,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:04:50,793 INFO L432 NwaCegarLoop]: 4142 mSDtfsCounter, 4307 mSDsluCounter, 16425 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 20567 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:50,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 20567 Invalid, 715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:04:50,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2024-11-16 09:04:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2437. [2024-11-16 09:04:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2381 states have (on average 1.8097438051238974) internal successors, (4309), 2385 states have internal predecessors, (4309), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (39), 35 states have call predecessors, (39), 34 states have call successors, (39) [2024-11-16 09:04:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4382 transitions. [2024-11-16 09:04:50,870 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4382 transitions. Word has length 62 [2024-11-16 09:04:50,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:50,870 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 4382 transitions. [2024-11-16 09:04:50,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:50,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4382 transitions. [2024-11-16 09:04:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:04:50,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:50,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:50,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:04:50,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:50,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash -276567251, now seen corresponding path program 1 times [2024-11-16 09:04:50,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:50,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270412902] [2024-11-16 09:04:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:50,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:50,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:04:51,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:51,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270412902] [2024-11-16 09:04:51,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270412902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:51,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:04:51,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:04:51,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320112663] [2024-11-16 09:04:51,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:51,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:04:51,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:51,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:04:51,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:04:51,021 INFO L87 Difference]: Start difference. First operand 2437 states and 4382 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:51,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:51,403 INFO L93 Difference]: Finished difference Result 2799 states and 4880 transitions. [2024-11-16 09:04:51,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:04:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-16 09:04:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:51,414 INFO L225 Difference]: With dead ends: 2799 [2024-11-16 09:04:51,414 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 09:04:51,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:04:51,417 INFO L432 NwaCegarLoop]: 4053 mSDtfsCounter, 4199 mSDsluCounter, 16124 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4208 SdHoareTripleChecker+Valid, 20177 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:51,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4208 Valid, 20177 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:04:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 09:04:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2437. [2024-11-16 09:04:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2381 states have (on average 1.8084838303233934) internal successors, (4306), 2385 states have internal predecessors, (4306), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (39), 35 states have call predecessors, (39), 34 states have call successors, (39) [2024-11-16 09:04:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4379 transitions. [2024-11-16 09:04:51,578 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4379 transitions. Word has length 62 [2024-11-16 09:04:51,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:51,579 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 4379 transitions. [2024-11-16 09:04:51,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4379 transitions. [2024-11-16 09:04:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:04:51,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:51,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:51,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:04:51,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:51,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1694372206, now seen corresponding path program 1 times [2024-11-16 09:04:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:51,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195130589] [2024-11-16 09:04:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:04:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:51,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195130589] [2024-11-16 09:04:51,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195130589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:51,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:04:51,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:04:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860928212] [2024-11-16 09:04:51,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:51,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:04:51,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:51,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:04:51,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:04:51,717 INFO L87 Difference]: Start difference. First operand 2437 states and 4379 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:52,406 INFO L93 Difference]: Finished difference Result 3121 states and 5308 transitions. [2024-11-16 09:04:52,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:04:52,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-11-16 09:04:52,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:52,422 INFO L225 Difference]: With dead ends: 3121 [2024-11-16 09:04:52,422 INFO L226 Difference]: Without dead ends: 2817 [2024-11-16 09:04:52,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:04:52,428 INFO L432 NwaCegarLoop]: 4157 mSDtfsCounter, 4377 mSDsluCounter, 12237 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4400 SdHoareTripleChecker+Valid, 16394 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:52,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4400 Valid, 16394 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:04:52,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2024-11-16 09:04:52,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2716. [2024-11-16 09:04:52,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2610 states have (on average 1.7632183908045977) internal successors, (4602), 2619 states have internal predecessors, (4602), 64 states have call successors, (64), 36 states have call predecessors, (64), 40 states have return successors, (73), 62 states have call predecessors, (73), 64 states have call successors, (73) [2024-11-16 09:04:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4739 transitions. [2024-11-16 09:04:52,568 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4739 transitions. Word has length 62 [2024-11-16 09:04:52,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:52,569 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4739 transitions. [2024-11-16 09:04:52,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:04:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4739 transitions. [2024-11-16 09:04:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:04:52,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:52,571 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:52,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:04:52,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:52,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash 212927374, now seen corresponding path program 1 times [2024-11-16 09:04:52,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856819516] [2024-11-16 09:04:52,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:52,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:04:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:04:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:04:52,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856819516] [2024-11-16 09:04:52,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856819516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602781380] [2024-11-16 09:04:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:52,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:52,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:52,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:52,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:04:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:52,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:52,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:52,939 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:04:52,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:52,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602781380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:52,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:52,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:04:52,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041545167] [2024-11-16 09:04:52,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:52,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:52,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:52,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:52,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:52,942 INFO L87 Difference]: Start difference. First operand 2716 states and 4739 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:04:53,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:53,073 INFO L93 Difference]: Finished difference Result 3851 states and 6245 transitions. [2024-11-16 09:04:53,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:53,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2024-11-16 09:04:53,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:53,089 INFO L225 Difference]: With dead ends: 3851 [2024-11-16 09:04:53,089 INFO L226 Difference]: Without dead ends: 3268 [2024-11-16 09:04:53,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:53,094 INFO L432 NwaCegarLoop]: 4112 mSDtfsCounter, 4079 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:53,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 4244 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2024-11-16 09:04:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 3241. [2024-11-16 09:04:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3039 states have (on average 1.6995722277064824) internal successors, (5165), 3055 states have internal predecessors, (5165), 120 states have call successors, (120), 72 states have call predecessors, (120), 80 states have return successors, (137), 115 states have call predecessors, (137), 120 states have call successors, (137) [2024-11-16 09:04:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5422 transitions. [2024-11-16 09:04:53,251 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5422 transitions. Word has length 103 [2024-11-16 09:04:53,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:53,251 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5422 transitions. [2024-11-16 09:04:53,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:04:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5422 transitions. [2024-11-16 09:04:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 09:04:53,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:53,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:53,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:04:53,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 09:04:53,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:53,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash -154639468, now seen corresponding path program 1 times [2024-11-16 09:04:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:53,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528018886] [2024-11-16 09:04:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:53,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:04:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:04:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:04:53,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:53,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528018886] [2024-11-16 09:04:53,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528018886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:53,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812079763] [2024-11-16 09:04:53,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:53,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:53,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:53,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:53,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:04:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:53,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:53,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 09:04:53,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:53,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812079763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:53,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:53,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:53,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784913662] [2024-11-16 09:04:53,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:53,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:53,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:53,729 INFO L87 Difference]: Start difference. First operand 3241 states and 5422 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:53,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:53,925 INFO L93 Difference]: Finished difference Result 5307 states and 8193 transitions. [2024-11-16 09:04:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2024-11-16 09:04:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:53,946 INFO L225 Difference]: With dead ends: 5307 [2024-11-16 09:04:53,946 INFO L226 Difference]: Without dead ends: 4200 [2024-11-16 09:04:53,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:53,953 INFO L432 NwaCegarLoop]: 4234 mSDtfsCounter, 118 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 8341 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:53,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 8341 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2024-11-16 09:04:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 4200. [2024-11-16 09:04:54,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4200 states, 3827 states have (on average 1.6179775280898876) internal successors, (6192), 3852 states have internal predecessors, (6192), 219 states have call successors, (219), 136 states have call predecessors, (219), 152 states have return successors, (278), 215 states have call predecessors, (278), 219 states have call successors, (278) [2024-11-16 09:04:54,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4200 states to 4200 states and 6689 transitions. [2024-11-16 09:04:54,221 INFO L78 Accepts]: Start accepts. Automaton has 4200 states and 6689 transitions. Word has length 103 [2024-11-16 09:04:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:54,225 INFO L471 AbstractCegarLoop]: Abstraction has 4200 states and 6689 transitions. [2024-11-16 09:04:54,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4200 states and 6689 transitions. [2024-11-16 09:04:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 09:04:54,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:54,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:54,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:04:54,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-16 09:04:54,432 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:54,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:54,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1569561765, now seen corresponding path program 1 times [2024-11-16 09:04:54,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:54,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744937547] [2024-11-16 09:04:54,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:54,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:04:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 09:04:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 09:04:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 09:04:54,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:54,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744937547] [2024-11-16 09:04:54,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744937547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:54,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069839258] [2024-11-16 09:04:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:54,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:54,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:54,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:54,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:04:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:54,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:54,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 09:04:54,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:54,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069839258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:54,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:54,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376172036] [2024-11-16 09:04:54,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:54,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:54,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:54,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:54,720 INFO L87 Difference]: Start difference. First operand 4200 states and 6689 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:54,855 INFO L93 Difference]: Finished difference Result 6453 states and 9717 transitions. [2024-11-16 09:04:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 154 [2024-11-16 09:04:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:54,874 INFO L225 Difference]: With dead ends: 6453 [2024-11-16 09:04:54,875 INFO L226 Difference]: Without dead ends: 4392 [2024-11-16 09:04:54,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:54,882 INFO L432 NwaCegarLoop]: 4113 mSDtfsCounter, 4090 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4090 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:54,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4090 Valid, 4137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2024-11-16 09:04:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 4392. [2024-11-16 09:04:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 3999 states have (on average 1.5863965991497875) internal successors, (6344), 4024 states have internal predecessors, (6344), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (282), 219 states have call predecessors, (282), 223 states have call successors, (282) [2024-11-16 09:04:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6849 transitions. [2024-11-16 09:04:55,048 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6849 transitions. Word has length 154 [2024-11-16 09:04:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:55,048 INFO L471 AbstractCegarLoop]: Abstraction has 4392 states and 6849 transitions. [2024-11-16 09:04:55,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-16 09:04:55,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6849 transitions. [2024-11-16 09:04:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 09:04:55,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:55,055 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:55,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:04:55,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:55,256 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:55,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:55,257 INFO L85 PathProgramCache]: Analyzing trace with hash -608582561, now seen corresponding path program 1 times [2024-11-16 09:04:55,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:55,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391021555] [2024-11-16 09:04:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:55,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 09:04:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:04:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 09:04:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 09:04:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-16 09:04:55,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:55,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391021555] [2024-11-16 09:04:55,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391021555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379376188] [2024-11-16 09:04:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:55,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:55,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:55,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:55,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:04:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:55,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:04:55,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 09:04:55,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:55,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379376188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:55,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:55,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:55,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297830425] [2024-11-16 09:04:55,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:55,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:55,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:55,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:55,554 INFO L87 Difference]: Start difference. First operand 4392 states and 6849 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:04:55,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:55,702 INFO L93 Difference]: Finished difference Result 6294 states and 9278 transitions. [2024-11-16 09:04:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:55,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 154 [2024-11-16 09:04:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:55,726 INFO L225 Difference]: With dead ends: 6294 [2024-11-16 09:04:55,726 INFO L226 Difference]: Without dead ends: 4512 [2024-11-16 09:04:55,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:55,733 INFO L432 NwaCegarLoop]: 4137 mSDtfsCounter, 4061 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:55,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 4275 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2024-11-16 09:04:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4380. [2024-11-16 09:04:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 3987 states have (on average 1.5791321795836468) internal successors, (6296), 4012 states have internal predecessors, (6296), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (282), 219 states have call predecessors, (282), 223 states have call successors, (282) [2024-11-16 09:04:55,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 6801 transitions. [2024-11-16 09:04:55,962 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 6801 transitions. Word has length 154 [2024-11-16 09:04:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:55,962 INFO L471 AbstractCegarLoop]: Abstraction has 4380 states and 6801 transitions. [2024-11-16 09:04:55,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:04:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 6801 transitions. [2024-11-16 09:04:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 09:04:55,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:55,968 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:55,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 09:04:56,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:56,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:56,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1702687134, now seen corresponding path program 1 times [2024-11-16 09:04:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079768134] [2024-11-16 09:04:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:56,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:04:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:04:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 09:04:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 09:04:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-16 09:04:56,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:56,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079768134] [2024-11-16 09:04:56,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079768134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:56,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987488781] [2024-11-16 09:04:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:56,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:56,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:56,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:56,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:04:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:56,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:04:56,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:04:56,421 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:56,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987488781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:56,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:56,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:56,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415354960] [2024-11-16 09:04:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:56,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:56,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:56,423 INFO L87 Difference]: Start difference. First operand 4380 states and 6801 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:04:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:56,630 INFO L93 Difference]: Finished difference Result 8666 states and 12273 transitions. [2024-11-16 09:04:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:56,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 155 [2024-11-16 09:04:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:56,662 INFO L225 Difference]: With dead ends: 8666 [2024-11-16 09:04:56,663 INFO L226 Difference]: Without dead ends: 6425 [2024-11-16 09:04:56,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:56,671 INFO L432 NwaCegarLoop]: 4227 mSDtfsCounter, 118 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 8330 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:56,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 8330 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2024-11-16 09:04:56,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 6422. [2024-11-16 09:04:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6422 states, 5663 states have (on average 1.4734239802224969) internal successors, (8344), 5712 states have internal predecessors, (8344), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (614), 421 states have call predecessors, (614), 429 states have call successors, (614) [2024-11-16 09:04:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6422 states to 6422 states and 9387 transitions. [2024-11-16 09:04:56,935 INFO L78 Accepts]: Start accepts. Automaton has 6422 states and 9387 transitions. Word has length 155 [2024-11-16 09:04:56,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:56,937 INFO L471 AbstractCegarLoop]: Abstraction has 6422 states and 9387 transitions. [2024-11-16 09:04:56,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:04:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6422 states and 9387 transitions. [2024-11-16 09:04:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 09:04:56,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:56,946 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:56,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 09:04:57,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 09:04:57,147 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:57,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:57,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1797777086, now seen corresponding path program 1 times [2024-11-16 09:04:57,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:57,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352194272] [2024-11-16 09:04:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 09:04:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:04:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:04:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:04:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 09:04:57,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:57,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352194272] [2024-11-16 09:04:57,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352194272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:57,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035787281] [2024-11-16 09:04:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:57,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:57,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:57,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:57,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:04:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:57,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:04:57,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 09:04:57,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:57,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035787281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:57,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:57,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:04:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797491026] [2024-11-16 09:04:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:57,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:04:57,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:04:57,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:57,466 INFO L87 Difference]: Start difference. First operand 6422 states and 9387 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:04:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:57,731 INFO L93 Difference]: Finished difference Result 8672 states and 12357 transitions. [2024-11-16 09:04:57,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:04:57,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 156 [2024-11-16 09:04:57,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:57,753 INFO L225 Difference]: With dead ends: 8672 [2024-11-16 09:04:57,754 INFO L226 Difference]: Without dead ends: 6449 [2024-11-16 09:04:57,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:04:57,763 INFO L432 NwaCegarLoop]: 4199 mSDtfsCounter, 81 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 8297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:57,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 8297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:04:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6449 states. [2024-11-16 09:04:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6449 to 6414. [2024-11-16 09:04:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 5655 states have (on average 1.4634836427939877) internal successors, (8276), 5704 states have internal predecessors, (8276), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (614), 421 states have call predecessors, (614), 429 states have call successors, (614) [2024-11-16 09:04:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 9319 transitions. [2024-11-16 09:04:58,041 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 9319 transitions. Word has length 156 [2024-11-16 09:04:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:58,041 INFO L471 AbstractCegarLoop]: Abstraction has 6414 states and 9319 transitions. [2024-11-16 09:04:58,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 09:04:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 9319 transitions. [2024-11-16 09:04:58,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 09:04:58,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:58,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:58,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 09:04:58,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:58,250 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:58,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1975148935, now seen corresponding path program 1 times [2024-11-16 09:04:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:58,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366144794] [2024-11-16 09:04:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 09:04:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:04:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:04:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:04:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 09:04:58,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:58,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366144794] [2024-11-16 09:04:58,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366144794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:58,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172095380] [2024-11-16 09:04:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:58,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:58,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:58,370 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:58,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 09:04:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:58,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 09:04:58,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:04:58,577 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 09:04:58,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:04:58,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172095380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:04:58,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:04:58,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 09:04:58,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124510328] [2024-11-16 09:04:58,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:04:58,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:04:58,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:04:58,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:04:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:04:58,580 INFO L87 Difference]: Start difference. First operand 6414 states and 9319 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:04:59,062 INFO L93 Difference]: Finished difference Result 10665 states and 14701 transitions. [2024-11-16 09:04:59,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:04:59,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 157 [2024-11-16 09:04:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:04:59,085 INFO L225 Difference]: With dead ends: 10665 [2024-11-16 09:04:59,085 INFO L226 Difference]: Without dead ends: 6398 [2024-11-16 09:04:59,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:04:59,097 INFO L432 NwaCegarLoop]: 4063 mSDtfsCounter, 4110 mSDsluCounter, 8085 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 12148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:04:59,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 12148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:04:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2024-11-16 09:04:59,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6398. [2024-11-16 09:04:59,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6398 states, 5639 states have (on average 1.4449370455754567) internal successors, (8148), 5688 states have internal predecessors, (8148), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (614), 421 states have call predecessors, (614), 429 states have call successors, (614) [2024-11-16 09:04:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6398 states to 6398 states and 9191 transitions. [2024-11-16 09:04:59,568 INFO L78 Accepts]: Start accepts. Automaton has 6398 states and 9191 transitions. Word has length 157 [2024-11-16 09:04:59,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:04:59,569 INFO L471 AbstractCegarLoop]: Abstraction has 6398 states and 9191 transitions. [2024-11-16 09:04:59,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:04:59,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6398 states and 9191 transitions. [2024-11-16 09:04:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 09:04:59,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:04:59,579 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:04:59,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 09:04:59,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:59,780 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:04:59,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:04:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash -852869736, now seen corresponding path program 1 times [2024-11-16 09:04:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:04:59,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775237332] [2024-11-16 09:04:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:04:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:04:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:04:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:04:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:04:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:04:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 09:04:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:04:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:04:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:04:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:04:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:04:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 09:04:59,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:04:59,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775237332] [2024-11-16 09:04:59,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775237332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:04:59,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827647032] [2024-11-16 09:04:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:04:59,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:04:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:04:59,927 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:04:59,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 09:05:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:00,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 09:05:00,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 09:05:00,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827647032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:00,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 09:05:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678793427] [2024-11-16 09:05:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:00,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:05:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:05:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:05:00,124 INFO L87 Difference]: Start difference. First operand 6398 states and 9191 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:05:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:00,658 INFO L93 Difference]: Finished difference Result 10157 states and 13969 transitions. [2024-11-16 09:05:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:05:00,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 157 [2024-11-16 09:05:00,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:00,682 INFO L225 Difference]: With dead ends: 10157 [2024-11-16 09:05:00,683 INFO L226 Difference]: Without dead ends: 6530 [2024-11-16 09:05:00,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:05:00,703 INFO L432 NwaCegarLoop]: 4061 mSDtfsCounter, 4148 mSDsluCounter, 8080 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 12141 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:00,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 12141 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:05:00,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6530 states. [2024-11-16 09:05:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6530 to 5440. [2024-11-16 09:05:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 4865 states have (on average 1.4612538540596094) internal successors, (7109), 4894 states have internal predecessors, (7109), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2024-11-16 09:05:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 7877 transitions. [2024-11-16 09:05:01,086 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 7877 transitions. Word has length 157 [2024-11-16 09:05:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:01,087 INFO L471 AbstractCegarLoop]: Abstraction has 5440 states and 7877 transitions. [2024-11-16 09:05:01,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 09:05:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 7877 transitions. [2024-11-16 09:05:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 09:05:01,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:01,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:01,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 09:05:01,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:05:01,295 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:01,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1538637465, now seen corresponding path program 1 times [2024-11-16 09:05:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:01,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464349420] [2024-11-16 09:05:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:01,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 09:05:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 09:05:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 09:05:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 09:05:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 09:05:01,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464349420] [2024-11-16 09:05:01,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464349420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210578024] [2024-11-16 09:05:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:01,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:01,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 09:05:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:01,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 09:05:01,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 63 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:05:01,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:05:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-16 09:05:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210578024] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:01,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 09:05:01,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 9 [2024-11-16 09:05:01,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58091220] [2024-11-16 09:05:01,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:01,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:05:01,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:01,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:05:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:05:01,735 INFO L87 Difference]: Start difference. First operand 5440 states and 7877 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:05:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:02,165 INFO L93 Difference]: Finished difference Result 9770 states and 12967 transitions. [2024-11-16 09:05:02,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:05:02,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 157 [2024-11-16 09:05:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:02,192 INFO L225 Difference]: With dead ends: 9770 [2024-11-16 09:05:02,192 INFO L226 Difference]: Without dead ends: 8207 [2024-11-16 09:05:02,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:05:02,201 INFO L432 NwaCegarLoop]: 4219 mSDtfsCounter, 4190 mSDsluCounter, 4174 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4190 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:02,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4190 Valid, 8393 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:05:02,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2024-11-16 09:05:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 6786. [2024-11-16 09:05:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 5987 states have (on average 1.4028728912644062) internal successors, (8399), 6024 states have internal predecessors, (8399), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-16 09:05:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9465 transitions. [2024-11-16 09:05:02,570 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9465 transitions. Word has length 157 [2024-11-16 09:05:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:02,570 INFO L471 AbstractCegarLoop]: Abstraction has 6786 states and 9465 transitions. [2024-11-16 09:05:02,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 09:05:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9465 transitions. [2024-11-16 09:05:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:05:02,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:02,582 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:02,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 09:05:02,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 09:05:02,784 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:02,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:02,784 INFO L85 PathProgramCache]: Analyzing trace with hash 10277171, now seen corresponding path program 1 times [2024-11-16 09:05:02,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:02,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347673315] [2024-11-16 09:05:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:02,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:05:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 09:05:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 09:05:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 09:05:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 09:05:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 09:05:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:05:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-16 09:05:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-16 09:05:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:02,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347673315] [2024-11-16 09:05:02,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347673315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:02,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084050348] [2024-11-16 09:05:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:02,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:02,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:02,902 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:02,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 09:05:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:03,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:05:03,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-16 09:05:03,027 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084050348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:03,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:05:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096786188] [2024-11-16 09:05:03,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:03,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:03,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:05:03,030 INFO L87 Difference]: Start difference. First operand 6786 states and 9465 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:03,451 INFO L93 Difference]: Finished difference Result 10725 states and 14132 transitions. [2024-11-16 09:05:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:03,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 173 [2024-11-16 09:05:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:03,473 INFO L225 Difference]: With dead ends: 10725 [2024-11-16 09:05:03,473 INFO L226 Difference]: Without dead ends: 6887 [2024-11-16 09:05:03,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:05:03,485 INFO L432 NwaCegarLoop]: 4128 mSDtfsCounter, 4085 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4259 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:03,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4259 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:05:03,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states. [2024-11-16 09:05:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 6786. [2024-11-16 09:05:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 5987 states have (on average 1.396358777350927) internal successors, (8360), 6024 states have internal predecessors, (8360), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-16 09:05:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9426 transitions. [2024-11-16 09:05:03,788 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9426 transitions. Word has length 173 [2024-11-16 09:05:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:03,789 INFO L471 AbstractCegarLoop]: Abstraction has 6786 states and 9426 transitions. [2024-11-16 09:05:03,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9426 transitions. [2024-11-16 09:05:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 09:05:03,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:03,797 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:03,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-16 09:05:03,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 09:05:03,998 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:03,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1864054999, now seen corresponding path program 1 times [2024-11-16 09:05:03,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:03,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86316855] [2024-11-16 09:05:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 09:05:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 09:05:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 09:05:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 09:05:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 09:05:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 09:05:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:05:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-16 09:05:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-16 09:05:04,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:04,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86316855] [2024-11-16 09:05:04,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86316855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:04,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:05:04,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479809799] [2024-11-16 09:05:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:04,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:05:04,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:05:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:05:04,082 INFO L87 Difference]: Start difference. First operand 6786 states and 9426 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 09:05:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:04,610 INFO L93 Difference]: Finished difference Result 11154 states and 14500 transitions. [2024-11-16 09:05:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:05:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 173 [2024-11-16 09:05:04,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:04,634 INFO L225 Difference]: With dead ends: 11154 [2024-11-16 09:05:04,634 INFO L226 Difference]: Without dead ends: 6505 [2024-11-16 09:05:04,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:05:04,646 INFO L432 NwaCegarLoop]: 4068 mSDtfsCounter, 223 mSDsluCounter, 12008 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 16076 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:04,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 16076 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:05:04,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2024-11-16 09:05:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 6287. [2024-11-16 09:05:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6287 states, 5589 states have (on average 1.4156378600823045) internal successors, (7912), 5657 states have internal predecessors, (7912), 369 states have call successors, (369), 258 states have call predecessors, (369), 327 states have return successors, (541), 373 states have call predecessors, (541), 369 states have call successors, (541) [2024-11-16 09:05:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6287 states to 6287 states and 8822 transitions. [2024-11-16 09:05:05,056 INFO L78 Accepts]: Start accepts. Automaton has 6287 states and 8822 transitions. Word has length 173 [2024-11-16 09:05:05,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:05,057 INFO L471 AbstractCegarLoop]: Abstraction has 6287 states and 8822 transitions. [2024-11-16 09:05:05,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 09:05:05,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6287 states and 8822 transitions. [2024-11-16 09:05:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 09:05:05,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:05,064 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:05,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:05:05,064 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:05,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2136605334, now seen corresponding path program 1 times [2024-11-16 09:05:05,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:05,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849153076] [2024-11-16 09:05:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 09:05:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 09:05:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 09:05:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 09:05:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 09:05:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-16 09:05:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 09:05:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:05:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,192 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-16 09:05:05,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:05,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849153076] [2024-11-16 09:05:05,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849153076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:05,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818313157] [2024-11-16 09:05:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:05,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:05,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:05,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 09:05:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:05,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 09:05:05,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 09:05:05,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:05,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818313157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:05,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:05,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 09:05:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315315559] [2024-11-16 09:05:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:05,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:05,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:05,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:05,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:05:05,348 INFO L87 Difference]: Start difference. First operand 6287 states and 8822 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 09:05:05,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:05,594 INFO L93 Difference]: Finished difference Result 9006 states and 12180 transitions. [2024-11-16 09:05:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:05,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2024-11-16 09:05:05,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:05,614 INFO L225 Difference]: With dead ends: 9006 [2024-11-16 09:05:05,614 INFO L226 Difference]: Without dead ends: 6241 [2024-11-16 09:05:05,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:05:05,625 INFO L432 NwaCegarLoop]: 4214 mSDtfsCounter, 94 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 8305 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:05,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 8305 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:05:05,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2024-11-16 09:05:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6227. [2024-11-16 09:05:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6227 states, 5537 states have (on average 1.408705074950334) internal successors, (7800), 5603 states have internal predecessors, (7800), 365 states have call successors, (365), 254 states have call predecessors, (365), 323 states have return successors, (537), 371 states have call predecessors, (537), 365 states have call successors, (537) [2024-11-16 09:05:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6227 states to 6227 states and 8702 transitions. [2024-11-16 09:05:05,923 INFO L78 Accepts]: Start accepts. Automaton has 6227 states and 8702 transitions. Word has length 175 [2024-11-16 09:05:05,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:05,924 INFO L471 AbstractCegarLoop]: Abstraction has 6227 states and 8702 transitions. [2024-11-16 09:05:05,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 09:05:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 6227 states and 8702 transitions. [2024-11-16 09:05:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:05:05,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:05,930 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:05,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-16 09:05:06,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 09:05:06,132 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:06,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1425950011, now seen corresponding path program 1 times [2024-11-16 09:05:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:06,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823471458] [2024-11-16 09:05:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 09:05:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 09:05:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 09:05:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 09:05:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 09:05:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 09:05:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 09:05:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 09:05:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-16 09:05:06,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:06,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823471458] [2024-11-16 09:05:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823471458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:06,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960227989] [2024-11-16 09:05:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:06,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:06,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:06,256 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:06,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-16 09:05:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:06,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 09:05:06,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-16 09:05:06,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960227989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:06,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-16 09:05:06,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808085783] [2024-11-16 09:05:06,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:06,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:05:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:06,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:05:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:05:06,414 INFO L87 Difference]: Start difference. First operand 6227 states and 8702 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 09:05:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:06,747 INFO L93 Difference]: Finished difference Result 9062 states and 11955 transitions. [2024-11-16 09:05:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:05:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 176 [2024-11-16 09:05:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:06,766 INFO L225 Difference]: With dead ends: 9062 [2024-11-16 09:05:06,766 INFO L226 Difference]: Without dead ends: 4974 [2024-11-16 09:05:06,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:05:06,777 INFO L432 NwaCegarLoop]: 4104 mSDtfsCounter, 0 mSDsluCounter, 16407 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20511 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:06,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20511 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:05:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2024-11-16 09:05:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 4937. [2024-11-16 09:05:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4937 states, 4507 states have (on average 1.4694919014865764) internal successors, (6623), 4539 states have internal predecessors, (6623), 217 states have call successors, (217), 151 states have call predecessors, (217), 211 states have return successors, (330), 246 states have call predecessors, (330), 217 states have call successors, (330) [2024-11-16 09:05:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 7170 transitions. [2024-11-16 09:05:07,132 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 7170 transitions. Word has length 176 [2024-11-16 09:05:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:07,133 INFO L471 AbstractCegarLoop]: Abstraction has 4937 states and 7170 transitions. [2024-11-16 09:05:07,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 09:05:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 7170 transitions. [2024-11-16 09:05:07,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:05:07,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:07,138 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:07,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-16 09:05:07,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 09:05:07,339 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:07,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:07,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1639361527, now seen corresponding path program 1 times [2024-11-16 09:05:07,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:07,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578133971] [2024-11-16 09:05:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:07,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:05:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:05:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 09:05:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 09:05:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 09:05:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 09:05:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 09:05:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 09:05:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-16 09:05:07,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:07,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578133971] [2024-11-16 09:05:07,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578133971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:07,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707903732] [2024-11-16 09:05:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:07,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:07,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:07,494 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:07,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-16 09:05:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:07,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 09:05:07,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 09:05:07,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:07,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707903732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:07,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:07,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-16 09:05:07,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157804823] [2024-11-16 09:05:07,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:07,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:05:07,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:05:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:05:07,662 INFO L87 Difference]: Start difference. First operand 4937 states and 7170 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:07,854 INFO L93 Difference]: Finished difference Result 6103 states and 8513 transitions. [2024-11-16 09:05:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:05:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 184 [2024-11-16 09:05:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:07,868 INFO L225 Difference]: With dead ends: 6103 [2024-11-16 09:05:07,868 INFO L226 Difference]: Without dead ends: 3349 [2024-11-16 09:05:07,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:05:07,876 INFO L432 NwaCegarLoop]: 4104 mSDtfsCounter, 0 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16410 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:07,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:05:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2024-11-16 09:05:08,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3349. [2024-11-16 09:05:08,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3158 states have (on average 1.609246358454718) internal successors, (5082), 3170 states have internal predecessors, (5082), 95 states have call successors, (95), 70 states have call predecessors, (95), 94 states have return successors, (126), 108 states have call predecessors, (126), 95 states have call successors, (126) [2024-11-16 09:05:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 5303 transitions. [2024-11-16 09:05:08,063 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 5303 transitions. Word has length 184 [2024-11-16 09:05:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:08,063 INFO L471 AbstractCegarLoop]: Abstraction has 3349 states and 5303 transitions. [2024-11-16 09:05:08,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 5303 transitions. [2024-11-16 09:05:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-16 09:05:08,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:08,068 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:08,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-16 09:05:08,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:08,272 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:08,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash -94017754, now seen corresponding path program 1 times [2024-11-16 09:05:08,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:08,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364881010] [2024-11-16 09:05:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:08,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:05:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 09:05:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 09:05:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 09:05:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 09:05:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 09:05:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:05:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 09:05:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 09:05:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 09:05:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 09:05:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-16 09:05:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 09:05:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 09:05:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 09:05:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-16 09:05:08,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:08,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364881010] [2024-11-16 09:05:08,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364881010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:05:08,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088664264] [2024-11-16 09:05:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:08,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:08,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:05:08,417 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:05:08,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-16 09:05:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:08,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 09:05:08,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:05:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-16 09:05:08,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:05:08,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088664264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:08,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:05:08,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-16 09:05:08,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835161884] [2024-11-16 09:05:08,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:08,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:05:08,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:08,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:05:08,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:05:08,558 INFO L87 Difference]: Start difference. First operand 3349 states and 5303 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:08,706 INFO L93 Difference]: Finished difference Result 3897 states and 5919 transitions. [2024-11-16 09:05:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:05:08,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 184 [2024-11-16 09:05:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:08,712 INFO L225 Difference]: With dead ends: 3897 [2024-11-16 09:05:08,712 INFO L226 Difference]: Without dead ends: 2125 [2024-11-16 09:05:08,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:05:08,716 INFO L432 NwaCegarLoop]: 4101 mSDtfsCounter, 0 mSDsluCounter, 12297 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16398 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:08,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16398 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:05:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2024-11-16 09:05:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2125. [2024-11-16 09:05:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2124 states have (on average 1.8648775894538607) internal successors, (3961), 2124 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 3961 transitions. [2024-11-16 09:05:08,749 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 3961 transitions. Word has length 184 [2024-11-16 09:05:08,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:08,750 INFO L471 AbstractCegarLoop]: Abstraction has 2125 states and 3961 transitions. [2024-11-16 09:05:08,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 09:05:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 3961 transitions. [2024-11-16 09:05:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1649 [2024-11-16 09:05:08,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:08,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:08,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-16 09:05:09,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:05:09,029 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:09,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1315495844, now seen corresponding path program 1 times [2024-11-16 09:05:09,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899199776] [2024-11-16 09:05:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:09,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:10,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899199776] [2024-11-16 09:05:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899199776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:10,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:10,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:05:10,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456787247] [2024-11-16 09:05:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:10,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:10,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:10,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:10,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:10,840 INFO L87 Difference]: Start difference. First operand 2125 states and 3961 transitions. Second operand has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:16,378 INFO L93 Difference]: Finished difference Result 6140 states and 11527 transitions. [2024-11-16 09:05:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1648 [2024-11-16 09:05:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:16,392 INFO L225 Difference]: With dead ends: 6140 [2024-11-16 09:05:16,392 INFO L226 Difference]: Without dead ends: 4018 [2024-11-16 09:05:16,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:16,398 INFO L432 NwaCegarLoop]: 1358 mSDtfsCounter, 359 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 5247 mSolverCounterSat, 2356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 7603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2356 IncrementalHoareTripleChecker+Valid, 5247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:16,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1583 Invalid, 7603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2356 Valid, 5247 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 09:05:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2024-11-16 09:05:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 3935. [2024-11-16 09:05:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3935 states, 3934 states have (on average 1.7056431113370616) internal successors, (6710), 3934 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 6710 transitions. [2024-11-16 09:05:16,454 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 6710 transitions. Word has length 1648 [2024-11-16 09:05:16,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:16,457 INFO L471 AbstractCegarLoop]: Abstraction has 3935 states and 6710 transitions. [2024-11-16 09:05:16,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 2 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 6710 transitions. [2024-11-16 09:05:16,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2024-11-16 09:05:16,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:16,478 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:16,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:05:16,479 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:16,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1825081623, now seen corresponding path program 1 times [2024-11-16 09:05:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:16,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149166240] [2024-11-16 09:05:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149166240] [2024-11-16 09:05:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149166240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:17,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:17,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:05:17,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585339053] [2024-11-16 09:05:17,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:17,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:17,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:17,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:17,684 INFO L87 Difference]: Start difference. First operand 3935 states and 6710 transitions. Second operand has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:22,749 INFO L93 Difference]: Finished difference Result 11306 states and 19433 transitions. [2024-11-16 09:05:22,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:22,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1657 [2024-11-16 09:05:22,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:22,766 INFO L225 Difference]: With dead ends: 11306 [2024-11-16 09:05:22,766 INFO L226 Difference]: Without dead ends: 7374 [2024-11-16 09:05:22,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:22,775 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 1889 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 5713 mSolverCounterSat, 1409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 7122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 5713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:22,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 2245 Invalid, 7122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 5713 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-16 09:05:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7374 states. [2024-11-16 09:05:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7374 to 7367. [2024-11-16 09:05:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7367 states, 7366 states have (on average 1.5035297311973934) internal successors, (11075), 7366 states have internal predecessors, (11075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 11075 transitions. [2024-11-16 09:05:22,870 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 11075 transitions. Word has length 1657 [2024-11-16 09:05:22,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:22,870 INFO L471 AbstractCegarLoop]: Abstraction has 7367 states and 11075 transitions. [2024-11-16 09:05:22,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 2 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 11075 transitions. [2024-11-16 09:05:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1666 [2024-11-16 09:05:22,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:22,897 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:22,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:05:22,897 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:22,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1928089872, now seen corresponding path program 1 times [2024-11-16 09:05:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:22,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500345862] [2024-11-16 09:05:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:22,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500345862] [2024-11-16 09:05:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500345862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:23,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:23,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:05:23,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111840980] [2024-11-16 09:05:23,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:23,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:23,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:23,893 INFO L87 Difference]: Start difference. First operand 7367 states and 11075 transitions. Second operand has 3 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:28,994 INFO L93 Difference]: Finished difference Result 18160 states and 28151 transitions. [2024-11-16 09:05:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:28,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1665 [2024-11-16 09:05:28,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:29,011 INFO L225 Difference]: With dead ends: 18160 [2024-11-16 09:05:29,011 INFO L226 Difference]: Without dead ends: 10796 [2024-11-16 09:05:29,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:29,023 INFO L432 NwaCegarLoop]: 3467 mSDtfsCounter, 2273 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 4729 mSolverCounterSat, 2212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 6941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2212 IncrementalHoareTripleChecker+Valid, 4729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:29,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2273 Valid, 3717 Invalid, 6941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2212 Valid, 4729 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 09:05:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2024-11-16 09:05:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 10790. [2024-11-16 09:05:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10790 states, 10789 states have (on average 1.4242283807581797) internal successors, (15366), 10789 states have internal predecessors, (15366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10790 states to 10790 states and 15366 transitions. [2024-11-16 09:05:29,147 INFO L78 Accepts]: Start accepts. Automaton has 10790 states and 15366 transitions. Word has length 1665 [2024-11-16 09:05:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:29,147 INFO L471 AbstractCegarLoop]: Abstraction has 10790 states and 15366 transitions. [2024-11-16 09:05:29,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 10790 states and 15366 transitions. [2024-11-16 09:05:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1686 [2024-11-16 09:05:29,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:29,178 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:29,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:05:29,179 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:29,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:29,180 INFO L85 PathProgramCache]: Analyzing trace with hash -243480022, now seen corresponding path program 1 times [2024-11-16 09:05:29,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:29,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590968550] [2024-11-16 09:05:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:30,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:30,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590968550] [2024-11-16 09:05:30,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590968550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:30,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:30,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:05:30,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088844941] [2024-11-16 09:05:30,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:30,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:30,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:30,073 INFO L87 Difference]: Start difference. First operand 10790 states and 15366 transitions. Second operand has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:35,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:35,457 INFO L93 Difference]: Finished difference Result 31803 states and 45354 transitions. [2024-11-16 09:05:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1685 [2024-11-16 09:05:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:35,485 INFO L225 Difference]: With dead ends: 31803 [2024-11-16 09:05:35,485 INFO L226 Difference]: Without dead ends: 21016 [2024-11-16 09:05:35,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:35,498 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 2098 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5000 mSolverCounterSat, 2453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 7453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2453 IncrementalHoareTripleChecker+Valid, 5000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:35,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 1712 Invalid, 7453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2453 Valid, 5000 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-16 09:05:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21016 states. [2024-11-16 09:05:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21016 to 20999. [2024-11-16 09:05:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20999 states, 20998 states have (on average 1.355271930660063) internal successors, (28458), 20998 states have internal predecessors, (28458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:35,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20999 states to 20999 states and 28458 transitions. [2024-11-16 09:05:35,707 INFO L78 Accepts]: Start accepts. Automaton has 20999 states and 28458 transitions. Word has length 1685 [2024-11-16 09:05:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:35,708 INFO L471 AbstractCegarLoop]: Abstraction has 20999 states and 28458 transitions. [2024-11-16 09:05:35,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 561.6666666666666) internal successors, (1685), 2 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:35,708 INFO L276 IsEmpty]: Start isEmpty. Operand 20999 states and 28458 transitions. [2024-11-16 09:05:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2024-11-16 09:05:35,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:35,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:35,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:05:35,745 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:35,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash -488588574, now seen corresponding path program 1 times [2024-11-16 09:05:35,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416149382] [2024-11-16 09:05:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:35,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:36,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416149382] [2024-11-16 09:05:36,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416149382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:36,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:36,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:05:36,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524013670] [2024-11-16 09:05:36,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:36,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:36,521 INFO L87 Difference]: Start difference. First operand 20999 states and 28458 transitions. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:42,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:05:42,231 INFO L93 Difference]: Finished difference Result 62379 states and 84565 transitions. [2024-11-16 09:05:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:05:42,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1686 [2024-11-16 09:05:42,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:05:42,286 INFO L225 Difference]: With dead ends: 62379 [2024-11-16 09:05:42,286 INFO L226 Difference]: Without dead ends: 41383 [2024-11-16 09:05:42,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:42,309 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 3158 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 2125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 6896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2125 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:05:42,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 1159 Invalid, 6896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2125 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 09:05:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41383 states. [2024-11-16 09:05:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41383 to 41383. [2024-11-16 09:05:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41383 states, 41382 states have (on average 1.305664298487265) internal successors, (54031), 41382 states have internal predecessors, (54031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41383 states to 41383 states and 54031 transitions. [2024-11-16 09:05:42,705 INFO L78 Accepts]: Start accepts. Automaton has 41383 states and 54031 transitions. Word has length 1686 [2024-11-16 09:05:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:05:42,706 INFO L471 AbstractCegarLoop]: Abstraction has 41383 states and 54031 transitions. [2024-11-16 09:05:42,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:05:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 41383 states and 54031 transitions. [2024-11-16 09:05:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1783 [2024-11-16 09:05:42,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:05:42,753 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:05:42,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:05:42,753 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:05:42,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:05:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -890322460, now seen corresponding path program 1 times [2024-11-16 09:05:42,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:05:42,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286410030] [2024-11-16 09:05:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:05:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:05:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:05:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:05:43,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:05:43,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286410030] [2024-11-16 09:05:43,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286410030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:05:43,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:05:43,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:05:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120205824] [2024-11-16 09:05:43,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:05:43,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:05:43,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:05:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:05:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:05:43,576 INFO L87 Difference]: Start difference. First operand 41383 states and 54031 transitions. Second operand has 3 states, 3 states have (on average 594.0) internal successors, (1782), 3 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)