./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.05.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ee209640ee994f311a04b9c2d813fadfd34b19e8b71a748e88ebcbbe5883af1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:08:44,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:08:44,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:08:45,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:08:45,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:08:45,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:08:45,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:08:45,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:08:45,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:08:45,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:08:45,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:08:45,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:08:45,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:08:45,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:08:45,038 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:08:45,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:08:45,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:08:45,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:08:45,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:08:45,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:08:45,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:08:45,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:08:45,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:08:45,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:08:45,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:08:45,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:08:45,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:08:45,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:08:45,052 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:08:45,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:08:45,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:08:45,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:08:45,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:08:45,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:08:45,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:08:45,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:08:45,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:08:45,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:08:45,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:08:45,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:08:45,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:08:45,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:08:45,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee209640ee994f311a04b9c2d813fadfd34b19e8b71a748e88ebcbbe5883af1 [2024-11-16 09:08:45,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:08:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:08:45,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:08:45,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:08:45,376 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:08:45,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.05.cil-2.c [2024-11-16 09:08:46,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:08:47,417 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:08:47,418 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.05.cil-2.c [2024-11-16 09:08:47,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49c28095/53047cc47d8a45edbe85b21e96182194/FLAG2a29962dc [2024-11-16 09:08:47,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a49c28095/53047cc47d8a45edbe85b21e96182194 [2024-11-16 09:08:47,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:08:47,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:08:47,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:08:47,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:08:47,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:08:47,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:08:47" (1/1) ... [2024-11-16 09:08:47,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c66ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:47, skipping insertion in model container [2024-11-16 09:08:47,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:08:47" (1/1) ... [2024-11-16 09:08:47,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:08:49,273 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_label43+token_ring.05.cil-2.c[381679,381692] [2024-11-16 09:08:49,301 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_label43+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:08:49,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:08:49,500 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:08:50,254 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_label43+token_ring.05.cil-2.c[381679,381692] [2024-11-16 09:08:50,259 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_label43+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:08:50,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:08:50,340 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:08:50,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50 WrapperNode [2024-11-16 09:08:50,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:08:50,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:08:50,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:08:50,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:08:50,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:50,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:50,879 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12810 [2024-11-16 09:08:50,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:08:50,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:08:50,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:08:50,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:08:50,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:50,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:50,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,040 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 09:08:51,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:08:51,455 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:08:51,455 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:08:51,455 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:08:51,456 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (1/1) ... [2024-11-16 09:08:51,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:08:51,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:08:51,532 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 09:08:51,550 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 09:08:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:08:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:08:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:08:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:08:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:08:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:08:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:08:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:08:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:08:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:08:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:08:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:08:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:08:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:08:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:08:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:08:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:08:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:08:51,816 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:08:51,818 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:08:59,559 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:08:59,560 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:08:59,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:08:59,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:08:59,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:08:59,562 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:08:59,562 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:08:59,831 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-16 09:08:59,832 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:08:59,894 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:08:59,894 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:08:59,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:08:59 BoogieIcfgContainer [2024-11-16 09:08:59,895 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:08:59,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:08:59,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:08:59,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:08:59,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:08:47" (1/3) ... [2024-11-16 09:08:59,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622076cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:08:59, skipping insertion in model container [2024-11-16 09:08:59,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:08:50" (2/3) ... [2024-11-16 09:08:59,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622076cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:08:59, skipping insertion in model container [2024-11-16 09:08:59,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:08:59" (3/3) ... [2024-11-16 09:08:59,904 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.05.cil-2.c [2024-11-16 09:08:59,923 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:08:59,924 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:09:00,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:09:00,053 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;@32a081ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:09:00,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:09:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:09:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:00,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:00,091 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] [2024-11-16 09:09:00,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:00,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1318933517, now seen corresponding path program 1 times [2024-11-16 09:09:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:00,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94560101] [2024-11-16 09:09:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:00,723 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 09:09:00,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:00,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94560101] [2024-11-16 09:09:00,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94560101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:00,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:00,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:09:00,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586467135] [2024-11-16 09:09:00,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:00,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:09:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:00,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:09:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:09:00,767 INFO L87 Difference]: Start difference. First operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:02,437 INFO L93 Difference]: Finished difference Result 5220 states and 9493 transitions. [2024-11-16 09:09:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:09:02,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:02,474 INFO L225 Difference]: With dead ends: 5220 [2024-11-16 09:09:02,474 INFO L226 Difference]: Without dead ends: 2722 [2024-11-16 09:09:02,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:09:02,488 INFO L432 NwaCegarLoop]: 4246 mSDtfsCounter, 4834 mSDsluCounter, 12761 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 17007 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:02,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 17007 Invalid, 1186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:09:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-16 09:09:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2590. [2024-11-16 09:09:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8023622047244094) internal successors, (4578), 2544 states have internal predecessors, (4578), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:09:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4649 transitions. [2024-11-16 09:09:02,661 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4649 transitions. Word has length 107 [2024-11-16 09:09:02,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:02,661 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4649 transitions. [2024-11-16 09:09:02,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:02,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4649 transitions. [2024-11-16 09:09:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:02,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:02,665 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] [2024-11-16 09:09:02,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:09:02,666 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:02,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1959458763, now seen corresponding path program 1 times [2024-11-16 09:09:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:02,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114571534] [2024-11-16 09:09:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:02,942 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 09:09:02,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114571534] [2024-11-16 09:09:02,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114571534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:02,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:02,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:02,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464953983] [2024-11-16 09:09:02,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:02,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:02,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:02,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:02,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:02,947 INFO L87 Difference]: Start difference. First operand 2590 states and 4649 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:03,861 INFO L93 Difference]: Finished difference Result 3181 states and 5553 transitions. [2024-11-16 09:09:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:03,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:03,874 INFO L225 Difference]: With dead ends: 3181 [2024-11-16 09:09:03,875 INFO L226 Difference]: Without dead ends: 2727 [2024-11-16 09:09:03,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:09:03,880 INFO L432 NwaCegarLoop]: 4160 mSDtfsCounter, 4646 mSDsluCounter, 12376 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 16536 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:03,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4659 Valid, 16536 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:09:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2024-11-16 09:09:03,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 2590. [2024-11-16 09:09:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8015748031496064) internal successors, (4576), 2544 states have internal predecessors, (4576), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:09:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4647 transitions. [2024-11-16 09:09:03,963 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4647 transitions. Word has length 107 [2024-11-16 09:09:03,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:03,964 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4647 transitions. [2024-11-16 09:09:03,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4647 transitions. [2024-11-16 09:09:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:03,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:03,969 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] [2024-11-16 09:09:03,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:09:03,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:03,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1020927148, now seen corresponding path program 1 times [2024-11-16 09:09:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:03,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159615310] [2024-11-16 09:09:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:03,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:04,235 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 09:09:04,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:04,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159615310] [2024-11-16 09:09:04,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159615310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:04,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:04,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:04,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878773485] [2024-11-16 09:09:04,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:04,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:04,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:04,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:04,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:04,241 INFO L87 Difference]: Start difference. First operand 2590 states and 4647 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:06,058 INFO L93 Difference]: Finished difference Result 3470 states and 5976 transitions. [2024-11-16 09:09:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:06,072 INFO L225 Difference]: With dead ends: 3470 [2024-11-16 09:09:06,072 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 09:09:06,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:06,076 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:06,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21503 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:09:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 09:09:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2805. [2024-11-16 09:09:06,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2734 states have (on average 1.776517922457937) internal successors, (4857), 2739 states have internal predecessors, (4857), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-16 09:09:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4958 transitions. [2024-11-16 09:09:06,172 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4958 transitions. Word has length 107 [2024-11-16 09:09:06,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:06,172 INFO L471 AbstractCegarLoop]: Abstraction has 2805 states and 4958 transitions. [2024-11-16 09:09:06,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4958 transitions. [2024-11-16 09:09:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:06,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:06,176 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] [2024-11-16 09:09:06,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:09:06,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:06,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1406293931, now seen corresponding path program 1 times [2024-11-16 09:09:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493485438] [2024-11-16 09:09:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:06,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:06,363 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 09:09:06,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:06,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493485438] [2024-11-16 09:09:06,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493485438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:06,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:06,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:06,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911811274] [2024-11-16 09:09:06,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:06,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:06,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:06,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:06,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:06,366 INFO L87 Difference]: Start difference. First operand 2805 states and 4958 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:07,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:07,963 INFO L93 Difference]: Finished difference Result 4243 states and 7125 transitions. [2024-11-16 09:09:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:07,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:07,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:07,979 INFO L225 Difference]: With dead ends: 4243 [2024-11-16 09:09:07,979 INFO L226 Difference]: Without dead ends: 3574 [2024-11-16 09:09:07,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:07,984 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4756 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:07,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 21501 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:09:07,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-16 09:09:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3237. [2024-11-16 09:09:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3124 states have (on average 1.735595390524968) internal successors, (5422), 3131 states have internal predecessors, (5422), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-16 09:09:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 5587 transitions. [2024-11-16 09:09:08,123 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 5587 transitions. Word has length 107 [2024-11-16 09:09:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:08,124 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 5587 transitions. [2024-11-16 09:09:08,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 5587 transitions. [2024-11-16 09:09:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:08,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:08,126 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] [2024-11-16 09:09:08,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:09:08,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:08,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash 243842868, now seen corresponding path program 1 times [2024-11-16 09:09:08,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:08,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81281441] [2024-11-16 09:09:08,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:08,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:08,316 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 09:09:08,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:08,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81281441] [2024-11-16 09:09:08,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81281441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:08,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:08,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:08,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683556997] [2024-11-16 09:09:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:08,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:08,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:08,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:08,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:08,319 INFO L87 Difference]: Start difference. First operand 3237 states and 5587 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:10,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:10,108 INFO L93 Difference]: Finished difference Result 5745 states and 9350 transitions. [2024-11-16 09:09:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:09:10,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:10,134 INFO L225 Difference]: With dead ends: 5745 [2024-11-16 09:09:10,135 INFO L226 Difference]: Without dead ends: 4644 [2024-11-16 09:09:10,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:09:10,142 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:10,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21501 Invalid, 1781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:09:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-11-16 09:09:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 4103. [2024-11-16 09:09:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 3906 states have (on average 1.677931387608807) internal successors, (6554), 3917 states have internal predecessors, (6554), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-16 09:09:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 6853 transitions. [2024-11-16 09:09:10,342 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 6853 transitions. Word has length 107 [2024-11-16 09:09:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:10,343 INFO L471 AbstractCegarLoop]: Abstraction has 4103 states and 6853 transitions. [2024-11-16 09:09:10,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 6853 transitions. [2024-11-16 09:09:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:10,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:10,348 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] [2024-11-16 09:09:10,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:09:10,348 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:10,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:10,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188405, now seen corresponding path program 1 times [2024-11-16 09:09:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:10,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747905602] [2024-11-16 09:09:10,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:10,539 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 09:09:10,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:10,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747905602] [2024-11-16 09:09:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747905602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:10,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:10,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675500093] [2024-11-16 09:09:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:10,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:10,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:10,542 INFO L87 Difference]: Start difference. First operand 4103 states and 6853 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:12,261 INFO L93 Difference]: Finished difference Result 9373 states and 14750 transitions. [2024-11-16 09:09:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:09:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:12,295 INFO L225 Difference]: With dead ends: 9373 [2024-11-16 09:09:12,296 INFO L226 Difference]: Without dead ends: 7406 [2024-11-16 09:09:12,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:09:12,305 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4967 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:12,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 21491 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:09:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2024-11-16 09:09:12,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 5826. [2024-11-16 09:09:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6141890656427136) internal successors, (8828), 5488 states have internal predecessors, (8828), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:09:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9397 transitions. [2024-11-16 09:09:12,565 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9397 transitions. Word has length 107 [2024-11-16 09:09:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:12,565 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9397 transitions. [2024-11-16 09:09:12,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9397 transitions. [2024-11-16 09:09:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:12,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:12,571 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] [2024-11-16 09:09:12,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:09:12,572 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:12,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash 888946166, now seen corresponding path program 1 times [2024-11-16 09:09:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:12,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105757828] [2024-11-16 09:09:12,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:12,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:12,775 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 09:09:12,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:12,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105757828] [2024-11-16 09:09:12,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105757828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:12,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:12,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:12,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082919808] [2024-11-16 09:09:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:12,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:12,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:12,778 INFO L87 Difference]: Start difference. First operand 5826 states and 9397 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:13,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:13,662 INFO L93 Difference]: Finished difference Result 10455 states and 16406 transitions. [2024-11-16 09:09:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:13,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:13,694 INFO L225 Difference]: With dead ends: 10455 [2024-11-16 09:09:13,694 INFO L226 Difference]: Without dead ends: 6765 [2024-11-16 09:09:13,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:09:13,707 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4653 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:13,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4666 Valid, 16533 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:09:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2024-11-16 09:09:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5826. [2024-11-16 09:09:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6110806363137684) internal successors, (8811), 5488 states have internal predecessors, (8811), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:09:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9380 transitions. [2024-11-16 09:09:14,015 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9380 transitions. Word has length 107 [2024-11-16 09:09:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:14,016 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9380 transitions. [2024-11-16 09:09:14,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9380 transitions. [2024-11-16 09:09:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:14,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:14,021 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] [2024-11-16 09:09:14,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:09:14,021 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:14,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2096864341, now seen corresponding path program 1 times [2024-11-16 09:09:14,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:14,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834488219] [2024-11-16 09:09:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:14,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:14,172 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 09:09:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:14,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834488219] [2024-11-16 09:09:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834488219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:14,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:14,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:14,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984844064] [2024-11-16 09:09:14,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:14,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:14,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:14,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:14,175 INFO L87 Difference]: Start difference. First operand 5826 states and 9380 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:15,861 INFO L93 Difference]: Finished difference Result 15526 states and 23872 transitions. [2024-11-16 09:09:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:09:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:15,901 INFO L225 Difference]: With dead ends: 15526 [2024-11-16 09:09:15,901 INFO L226 Difference]: Without dead ends: 11836 [2024-11-16 09:09:15,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:09:15,919 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4881 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:15,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 21491 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:09:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11836 states. [2024-11-16 09:09:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11836 to 9278. [2024-11-16 09:09:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.552212800557556) internal successors, (13363), 8644 states have internal predecessors, (13363), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:09:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14510 transitions. [2024-11-16 09:09:16,431 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14510 transitions. Word has length 107 [2024-11-16 09:09:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:16,432 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14510 transitions. [2024-11-16 09:09:16,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14510 transitions. [2024-11-16 09:09:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:16,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:16,440 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] [2024-11-16 09:09:16,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:09:16,440 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:16,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:16,441 INFO L85 PathProgramCache]: Analyzing trace with hash 611808790, now seen corresponding path program 1 times [2024-11-16 09:09:16,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:16,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693251567] [2024-11-16 09:09:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:16,594 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 09:09:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693251567] [2024-11-16 09:09:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693251567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:16,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:16,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:16,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20410233] [2024-11-16 09:09:16,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:16,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:16,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:16,597 INFO L87 Difference]: Start difference. First operand 9278 states and 14510 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:17,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:17,651 INFO L93 Difference]: Finished difference Result 18091 states and 27881 transitions. [2024-11-16 09:09:17,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:17,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:17,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:17,688 INFO L225 Difference]: With dead ends: 18091 [2024-11-16 09:09:17,688 INFO L226 Difference]: Without dead ends: 10949 [2024-11-16 09:09:17,708 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 09:09:17,708 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4652 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:17,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 16533 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:09:17,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2024-11-16 09:09:18,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 9278. [2024-11-16 09:09:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5483796027413173) internal successors, (13330), 8644 states have internal predecessors, (13330), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:09:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14477 transitions. [2024-11-16 09:09:18,351 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14477 transitions. Word has length 107 [2024-11-16 09:09:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:18,352 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14477 transitions. [2024-11-16 09:09:18,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14477 transitions. [2024-11-16 09:09:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:18,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:18,361 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] [2024-11-16 09:09:18,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:09:18,362 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:18,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1395187765, now seen corresponding path program 1 times [2024-11-16 09:09:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750477868] [2024-11-16 09:09:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:18,503 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 09:09:18,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750477868] [2024-11-16 09:09:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750477868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:18,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:18,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336882886] [2024-11-16 09:09:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:18,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:18,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:18,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:18,505 INFO L87 Difference]: Start difference. First operand 9278 states and 14477 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:19,456 INFO L93 Difference]: Finished difference Result 18057 states and 27714 transitions. [2024-11-16 09:09:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:09:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:19,490 INFO L225 Difference]: With dead ends: 18057 [2024-11-16 09:09:19,490 INFO L226 Difference]: Without dead ends: 10915 [2024-11-16 09:09:19,512 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 09:09:19,513 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4566 mSDsluCounter, 16476 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4579 SdHoareTripleChecker+Valid, 20635 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:19,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4579 Valid, 20635 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:09:19,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2024-11-16 09:09:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 9278. [2024-11-16 09:09:20,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5445464049250783) internal successors, (13297), 8644 states have internal predecessors, (13297), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:09:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14444 transitions. [2024-11-16 09:09:20,039 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14444 transitions. Word has length 107 [2024-11-16 09:09:20,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:20,041 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14444 transitions. [2024-11-16 09:09:20,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14444 transitions. [2024-11-16 09:09:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:20,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:20,049 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] [2024-11-16 09:09:20,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:09:20,049 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:20,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 866268726, now seen corresponding path program 1 times [2024-11-16 09:09:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100419517] [2024-11-16 09:09:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:20,206 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 09:09:20,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:20,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100419517] [2024-11-16 09:09:20,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100419517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:20,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:20,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:09:20,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841396114] [2024-11-16 09:09:20,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:20,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:09:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:20,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:09:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:09:20,209 INFO L87 Difference]: Start difference. First operand 9278 states and 14444 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:22,256 INFO L93 Difference]: Finished difference Result 26784 states and 40516 transitions. [2024-11-16 09:09:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:09:22,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:22,322 INFO L225 Difference]: With dead ends: 26784 [2024-11-16 09:09:22,322 INFO L226 Difference]: Without dead ends: 19642 [2024-11-16 09:09:22,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:09:22,349 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4746 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:22,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4764 Valid, 21491 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:09:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19642 states. [2024-11-16 09:09:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19642 to 16229. [2024-11-16 09:09:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16229 states, 14952 states have (on average 1.4991305510968431) internal successors, (22415), 15019 states have internal predecessors, (22415), 821 states have call successors, (821), 391 states have call predecessors, (821), 454 states have return successors, (1612), 882 states have call predecessors, (1612), 819 states have call successors, (1612) [2024-11-16 09:09:23,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16229 states to 16229 states and 24848 transitions. [2024-11-16 09:09:23,205 INFO L78 Accepts]: Start accepts. Automaton has 16229 states and 24848 transitions. Word has length 107 [2024-11-16 09:09:23,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:23,205 INFO L471 AbstractCegarLoop]: Abstraction has 16229 states and 24848 transitions. [2024-11-16 09:09:23,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16229 states and 24848 transitions. [2024-11-16 09:09:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:09:23,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:23,220 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] [2024-11-16 09:09:23,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:09:23,220 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:23,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash 295017493, now seen corresponding path program 1 times [2024-11-16 09:09:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:23,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927405944] [2024-11-16 09:09:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:23,346 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 09:09:23,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:23,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927405944] [2024-11-16 09:09:23,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927405944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:23,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:09:23,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:09:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669741491] [2024-11-16 09:09:23,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:23,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:09:23,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:09:23,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:09:23,348 INFO L87 Difference]: Start difference. First operand 16229 states and 24848 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:25,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:25,940 INFO L93 Difference]: Finished difference Result 49386 states and 74125 transitions. [2024-11-16 09:09:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:09:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:09:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:26,045 INFO L225 Difference]: With dead ends: 49386 [2024-11-16 09:09:26,045 INFO L226 Difference]: Without dead ends: 35294 [2024-11-16 09:09:26,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:09:26,086 INFO L432 NwaCegarLoop]: 4367 mSDtfsCounter, 4999 mSDsluCounter, 12701 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 17068 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:09:26,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 17068 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:09:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35294 states. [2024-11-16 09:09:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35294 to 29535. [2024-11-16 09:09:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29535 states, 26989 states have (on average 1.4582237207751305) internal successors, (39356), 27185 states have internal predecessors, (39356), 1636 states have call successors, (1636), 781 states have call predecessors, (1636), 908 states have return successors, (3157), 1632 states have call predecessors, (3157), 1634 states have call successors, (3157) [2024-11-16 09:09:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29535 states to 29535 states and 44149 transitions. [2024-11-16 09:09:27,616 INFO L78 Accepts]: Start accepts. Automaton has 29535 states and 44149 transitions. Word has length 107 [2024-11-16 09:09:27,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:27,617 INFO L471 AbstractCegarLoop]: Abstraction has 29535 states and 44149 transitions. [2024-11-16 09:09:27,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:09:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 29535 states and 44149 transitions. [2024-11-16 09:09:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:09:27,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:27,674 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:09:27,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:09:27,674 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:27,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash -777789897, now seen corresponding path program 1 times [2024-11-16 09:09:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:27,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084632460] [2024-11-16 09:09:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:27,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:09:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:09:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:09:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084632460] [2024-11-16 09:09:27,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084632460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:09:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267447029] [2024-11-16 09:09:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:27,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:27,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:27,867 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 09:09:27,869 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 09:09:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:28,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:09:28,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:09:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 09:09:28,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:09:28,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267447029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:28,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:09:28,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:09:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734371292] [2024-11-16 09:09:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:28,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:09:28,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:28,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:09:28,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:28,119 INFO L87 Difference]: Start difference. First operand 29535 states and 44149 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:09:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:30,255 INFO L93 Difference]: Finished difference Result 83550 states and 124097 transitions. [2024-11-16 09:09:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:09:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:09:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:30,449 INFO L225 Difference]: With dead ends: 83550 [2024-11-16 09:09:30,449 INFO L226 Difference]: Without dead ends: 56152 [2024-11-16 09:09:30,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 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 09:09:30,525 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4251 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 4616 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 09:09:30,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:09:30,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56152 states. [2024-11-16 09:09:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56152 to 55627. [2024-11-16 09:09:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55627 states, 50673 states have (on average 1.4440234444378663) internal successors, (73173), 51062 states have internal predecessors, (73173), 3136 states have call successors, (3136), 1561 states have call predecessors, (3136), 1816 states have return successors, (6117), 3067 states have call predecessors, (6117), 3134 states have call successors, (6117) [2024-11-16 09:09:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55627 states to 55627 states and 82426 transitions. [2024-11-16 09:09:34,349 INFO L78 Accepts]: Start accepts. Automaton has 55627 states and 82426 transitions. Word has length 176 [2024-11-16 09:09:34,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:34,351 INFO L471 AbstractCegarLoop]: Abstraction has 55627 states and 82426 transitions. [2024-11-16 09:09:34,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:09:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 55627 states and 82426 transitions. [2024-11-16 09:09:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:09:34,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:34,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:09:34,493 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 09:09:34,676 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,SelfDestructingSolverStorable12 [2024-11-16 09:09:34,677 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:34,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1454955663, now seen corresponding path program 1 times [2024-11-16 09:09:34,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:34,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994570883] [2024-11-16 09:09:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:34,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:09:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:09:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:09:34,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:34,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994570883] [2024-11-16 09:09:34,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994570883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:09:34,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094528966] [2024-11-16 09:09:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:34,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:34,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:34,881 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 09:09:34,883 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 09:09:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:35,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:09:35,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:09:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:09:35,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:09:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094528966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:09:35,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:09:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308993948] [2024-11-16 09:09:35,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:35,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:09:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:09:35,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:35,132 INFO L87 Difference]: Start difference. First operand 55627 states and 82426 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:09:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:09:40,264 INFO L93 Difference]: Finished difference Result 161046 states and 238478 transitions. [2024-11-16 09:09:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:09:40,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:09:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:09:40,696 INFO L225 Difference]: With dead ends: 161046 [2024-11-16 09:09:40,696 INFO L226 Difference]: Without dead ends: 107556 [2024-11-16 09:09:40,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 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 09:09:40,821 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4245 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 4616 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 09:09:40,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:09:40,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107556 states. [2024-11-16 09:09:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107556 to 106511. [2024-11-16 09:09:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106511 states, 96871 states have (on average 1.4374477397776424) internal successors, (139247), 97646 states have internal predecessors, (139247), 6006 states have call successors, (6006), 3121 states have call predecessors, (6006), 3632 states have return successors, (11907), 5807 states have call predecessors, (11907), 6004 states have call successors, (11907) [2024-11-16 09:09:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106511 states to 106511 states and 157160 transitions. [2024-11-16 09:09:47,200 INFO L78 Accepts]: Start accepts. Automaton has 106511 states and 157160 transitions. Word has length 176 [2024-11-16 09:09:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:09:47,200 INFO L471 AbstractCegarLoop]: Abstraction has 106511 states and 157160 transitions. [2024-11-16 09:09:47,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:09:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 106511 states and 157160 transitions. [2024-11-16 09:09:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:09:47,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:09:47,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:09:47,386 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 09:09:47,569 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,SelfDestructingSolverStorable13 [2024-11-16 09:09:47,569 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:09:47,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:09:47,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1188209621, now seen corresponding path program 1 times [2024-11-16 09:09:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:09:47,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849817619] [2024-11-16 09:09:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:47,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:09:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:09:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:09:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:09:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:09:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:09:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:09:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:09:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:09:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:09:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:09:47,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849817619] [2024-11-16 09:09:47,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849817619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:09:47,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123511104] [2024-11-16 09:09:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:09:47,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:09:47,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:09:47,779 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 09:09:47,780 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 09:09:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:09:47,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:09:47,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:09:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:09:48,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:09:48,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123511104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:09:48,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:09:48,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:09:48,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524093256] [2024-11-16 09:09:48,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:09:48,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:09:48,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:09:48,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:09:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:09:48,043 INFO L87 Difference]: Start difference. First operand 106511 states and 157160 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)