./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb07c62e0c8f9c002ab72b797de071664dce20871b109c1b4c0b79acbb73493c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:06:49,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:06:49,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:06:49,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:06:49,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:06:49,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:06:49,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:06:49,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:06:49,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:06:49,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:06:49,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:06:49,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:06:49,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:06:49,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:06:49,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:06:49,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:06:49,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:06:49,621 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:06:49,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:06:49,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:06:49,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:06:49,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:06:49,626 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:06:49,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:06:49,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:06:49,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:06:49,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:06:49,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:06:49,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:06:49,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:06:49,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:06:49,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:06:49,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:06:49,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:06:49,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:06:49,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:06:49,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:06:49,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb07c62e0c8f9c002ab72b797de071664dce20871b109c1b4c0b79acbb73493c [2024-11-20 00:06:49,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:06:49,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:06:49,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:06:49,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:06:49,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:06:49,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c [2024-11-20 00:06:51,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:06:51,393 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:06:51,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c [2024-11-20 00:06:51,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f67cb27/458e6755d1164e2c87f9271effc07e52/FLAGb257ca0af [2024-11-20 00:06:51,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f67cb27/458e6755d1164e2c87f9271effc07e52 [2024-11-20 00:06:51,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:06:51,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:06:51,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:06:51,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:06:51,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:06:51,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609d58c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51, skipping insertion in model container [2024-11-20 00:06:51,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:06:51,633 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c[913,926] [2024-11-20 00:06:51,677 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c[5977,5990] [2024-11-20 00:06:51,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:06:51,797 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:06:51,809 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c[913,926] [2024-11-20 00:06:51,820 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c[5977,5990] [2024-11-20 00:06:51,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:06:51,884 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:06:51,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51 WrapperNode [2024-11-20 00:06:51,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:06:51,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:06:51,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:06:51,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:06:51,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,949 INFO L138 Inliner]: procedures = 72, calls = 84, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1083 [2024-11-20 00:06:51,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:06:51,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:06:51,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:06:51,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:06:51,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,991 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]. [2024-11-20 00:06:51,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:51,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:06:52,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:06:52,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:06:52,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:06:52,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (1/1) ... [2024-11-20 00:06:52,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:06:52,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:06:52,074 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) [2024-11-20 00:06:52,083 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 [2024-11-20 00:06:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:06:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:06:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:06:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-20 00:06:52,123 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-20 00:06:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:06:52,124 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:06:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:06:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:06:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:06:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:06:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:06:52,125 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:06:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:06:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:06:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:06:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:06:52,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:06:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:06:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:06:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:06:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:06:52,254 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:06:52,256 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:06:53,197 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-20 00:06:53,198 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:06:53,223 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:06:53,226 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-20 00:06:53,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:53 BoogieIcfgContainer [2024-11-20 00:06:53,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:06:53,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:06:53,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:06:53,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:06:53,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:06:51" (1/3) ... [2024-11-20 00:06:53,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9c6bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:53, skipping insertion in model container [2024-11-20 00:06:53,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:51" (2/3) ... [2024-11-20 00:06:53,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9c6bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:53, skipping insertion in model container [2024-11-20 00:06:53,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:53" (3/3) ... [2024-11-20 00:06:53,256 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.12.cil-2.c [2024-11-20 00:06:53,280 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:06:53,280 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:06:53,371 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:06:53,377 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;@16de667e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:06:53,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:06:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 467 states, 423 states have (on average 1.6288416075650118) internal successors, (689), 428 states have internal predecessors, (689), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:06:53,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-20 00:06:53,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:53,396 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] [2024-11-20 00:06:53,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:53,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:53,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1208991052, now seen corresponding path program 1 times [2024-11-20 00:06:53,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:53,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58896058] [2024-11-20 00:06:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:53,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:53,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:53,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 00:06:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:53,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:53,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58896058] [2024-11-20 00:06:53,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58896058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:53,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:53,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:53,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377112996] [2024-11-20 00:06:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:53,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:53,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:53,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:53,732 INFO L87 Difference]: Start difference. First operand has 467 states, 423 states have (on average 1.6288416075650118) internal successors, (689), 428 states have internal predecessors, (689), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:54,380 INFO L93 Difference]: Finished difference Result 979 states and 1574 transitions. [2024-11-20 00:06:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:06:54,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-20 00:06:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:54,398 INFO L225 Difference]: With dead ends: 979 [2024-11-20 00:06:54,398 INFO L226 Difference]: Without dead ends: 527 [2024-11-20 00:06:54,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:06:54,409 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 956 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:54,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 870 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:06:54,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-20 00:06:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 521. [2024-11-20 00:06:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 472 states have (on average 1.5169491525423728) internal successors, (716), 476 states have internal predecessors, (716), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-20 00:06:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 792 transitions. [2024-11-20 00:06:54,498 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 792 transitions. Word has length 44 [2024-11-20 00:06:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:54,498 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 792 transitions. [2024-11-20 00:06:54,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 792 transitions. [2024-11-20 00:06:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-20 00:06:54,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:54,501 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] [2024-11-20 00:06:54,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:06:54,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:54,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1452845587, now seen corresponding path program 1 times [2024-11-20 00:06:54,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:54,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907964458] [2024-11-20 00:06:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:54,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:54,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:54,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 00:06:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:54,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907964458] [2024-11-20 00:06:54,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907964458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:54,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:54,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:54,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134862752] [2024-11-20 00:06:54,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:54,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:54,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:54,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:54,607 INFO L87 Difference]: Start difference. First operand 521 states and 792 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:55,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:55,147 INFO L93 Difference]: Finished difference Result 769 states and 1132 transitions. [2024-11-20 00:06:55,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:06:55,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-20 00:06:55,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:55,152 INFO L225 Difference]: With dead ends: 769 [2024-11-20 00:06:55,152 INFO L226 Difference]: Without dead ends: 645 [2024-11-20 00:06:55,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:06:55,156 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 369 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:55,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1213 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:06:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-20 00:06:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 588. [2024-11-20 00:06:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 533 states have (on average 1.5009380863039399) internal successors, (800), 537 states have internal predecessors, (800), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-20 00:06:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 882 transitions. [2024-11-20 00:06:55,188 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 882 transitions. Word has length 45 [2024-11-20 00:06:55,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:55,188 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 882 transitions. [2024-11-20 00:06:55,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:55,189 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 882 transitions. [2024-11-20 00:06:55,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-20 00:06:55,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:55,190 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] [2024-11-20 00:06:55,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:06:55,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:55,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:55,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1557764248, now seen corresponding path program 1 times [2024-11-20 00:06:55,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:55,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146872228] [2024-11-20 00:06:55,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 00:06:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:55,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:55,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146872228] [2024-11-20 00:06:55,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146872228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:55,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:55,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:55,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350268236] [2024-11-20 00:06:55,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:55,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:55,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:55,264 INFO L87 Difference]: Start difference. First operand 588 states and 882 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:55,686 INFO L93 Difference]: Finished difference Result 996 states and 1441 transitions. [2024-11-20 00:06:55,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:06:55,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-20 00:06:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:55,692 INFO L225 Difference]: With dead ends: 996 [2024-11-20 00:06:55,692 INFO L226 Difference]: Without dead ends: 805 [2024-11-20 00:06:55,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:06:55,695 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 966 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:55,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 869 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:06:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-20 00:06:55,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 753. [2024-11-20 00:06:55,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 679 states have (on average 1.4580265095729013) internal successors, (990), 686 states have internal predecessors, (990), 50 states have call successors, (50), 21 states have call predecessors, (50), 22 states have return successors, (60), 46 states have call predecessors, (60), 48 states have call successors, (60) [2024-11-20 00:06:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1100 transitions. [2024-11-20 00:06:55,734 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1100 transitions. Word has length 45 [2024-11-20 00:06:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:55,734 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1100 transitions. [2024-11-20 00:06:55,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:06:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1100 transitions. [2024-11-20 00:06:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 00:06:55,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:55,738 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:06:55,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:06:55,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:55,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1791650148, now seen corresponding path program 1 times [2024-11-20 00:06:55,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:55,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390422637] [2024-11-20 00:06:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 00:06:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:06:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 00:06:55,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:55,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390422637] [2024-11-20 00:06:55,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390422637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:55,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:55,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784434996] [2024-11-20 00:06:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:55,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:55,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:55,844 INFO L87 Difference]: Start difference. First operand 753 states and 1100 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:06:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:56,332 INFO L93 Difference]: Finished difference Result 1337 states and 1885 transitions. [2024-11-20 00:06:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:06:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-20 00:06:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:56,338 INFO L225 Difference]: With dead ends: 1337 [2024-11-20 00:06:56,339 INFO L226 Difference]: Without dead ends: 981 [2024-11-20 00:06:56,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:06:56,343 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 353 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:56,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1263 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:06:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-20 00:06:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 943. [2024-11-20 00:06:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 845 states have (on average 1.4082840236686391) internal successors, (1190), 854 states have internal predecessors, (1190), 64 states have call successors, (64), 29 states have call predecessors, (64), 32 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-20 00:06:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1338 transitions. [2024-11-20 00:06:56,382 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1338 transitions. Word has length 62 [2024-11-20 00:06:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:56,383 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1338 transitions. [2024-11-20 00:06:56,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:06:56,384 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1338 transitions. [2024-11-20 00:06:56,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:06:56,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:56,387 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:06:56,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:06:56,388 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:56,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash -298876425, now seen corresponding path program 1 times [2024-11-20 00:06:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:56,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086176460] [2024-11-20 00:06:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:56,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:06:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 00:06:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 00:06:56,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086176460] [2024-11-20 00:06:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086176460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:56,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:56,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:56,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035055597] [2024-11-20 00:06:56,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:56,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:56,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:56,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:56,458 INFO L87 Difference]: Start difference. First operand 943 states and 1338 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 00:06:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:56,839 INFO L93 Difference]: Finished difference Result 1596 states and 2191 transitions. [2024-11-20 00:06:56,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:06:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-20 00:06:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:56,847 INFO L225 Difference]: With dead ends: 1596 [2024-11-20 00:06:56,848 INFO L226 Difference]: Without dead ends: 1142 [2024-11-20 00:06:56,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:06:56,851 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 953 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:56,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 868 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 00:06:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-20 00:06:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1087. [2024-11-20 00:06:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 973 states have (on average 1.3782117163412126) internal successors, (1341), 984 states have internal predecessors, (1341), 72 states have call successors, (72), 35 states have call predecessors, (72), 40 states have return successors, (98), 68 states have call predecessors, (98), 70 states have call successors, (98) [2024-11-20 00:06:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1511 transitions. [2024-11-20 00:06:56,917 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1511 transitions. Word has length 67 [2024-11-20 00:06:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:56,917 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1511 transitions. [2024-11-20 00:06:56,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 00:06:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1511 transitions. [2024-11-20 00:06:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 00:06:56,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:56,919 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:06:56,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:06:56,919 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:56,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:56,919 INFO L85 PathProgramCache]: Analyzing trace with hash 570483420, now seen corresponding path program 1 times [2024-11-20 00:06:56,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:56,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168328140] [2024-11-20 00:06:56,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:56,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:06:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:06:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:06:57,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:57,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168328140] [2024-11-20 00:06:57,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168328140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:06:57,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882290089] [2024-11-20 00:06:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:57,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:06:57,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:06:57,068 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) [2024-11-20 00:06:57,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 00:06:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 00:06:57,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:06:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:57,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:06:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:06:57,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882290089] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 00:06:57,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 00:06:57,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-20 00:06:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569484418] [2024-11-20 00:06:57,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:57,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:57,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:57,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:06:57,324 INFO L87 Difference]: Start difference. First operand 1087 states and 1511 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:06:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:57,489 INFO L93 Difference]: Finished difference Result 1143 states and 1579 transitions. [2024-11-20 00:06:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:06:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-20 00:06:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:57,495 INFO L225 Difference]: With dead ends: 1143 [2024-11-20 00:06:57,495 INFO L226 Difference]: Without dead ends: 1140 [2024-11-20 00:06:57,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:06:57,496 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 1285 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:57,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 792 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:06:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-11-20 00:06:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1086. [2024-11-20 00:06:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 973 states have (on average 1.3761562178828366) internal successors, (1339), 983 states have internal predecessors, (1339), 71 states have call successors, (71), 35 states have call predecessors, (71), 40 states have return successors, (98), 68 states have call predecessors, (98), 70 states have call successors, (98) [2024-11-20 00:06:57,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1508 transitions. [2024-11-20 00:06:57,544 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1508 transitions. Word has length 68 [2024-11-20 00:06:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:57,544 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1508 transitions. [2024-11-20 00:06:57,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:06:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1508 transitions. [2024-11-20 00:06:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 00:06:57,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:57,546 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:06:57,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 00:06:57,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 00:06:57,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:57,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:57,748 INFO L85 PathProgramCache]: Analyzing trace with hash 503711194, now seen corresponding path program 1 times [2024-11-20 00:06:57,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:57,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073367049] [2024-11-20 00:06:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:57,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:06:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:06:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:06:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:57,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073367049] [2024-11-20 00:06:57,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073367049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:06:57,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094420840] [2024-11-20 00:06:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:57,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:06:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:06:57,875 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) [2024-11-20 00:06:57,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 00:06:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:57,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:06:57,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:06:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:58,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:06:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:06:58,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094420840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:06:58,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:06:58,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-20 00:06:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989925333] [2024-11-20 00:06:58,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:06:58,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 00:06:58,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:58,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 00:06:58,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:06:58,305 INFO L87 Difference]: Start difference. First operand 1086 states and 1508 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-20 00:06:59,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:06:59,752 INFO L93 Difference]: Finished difference Result 2593 states and 3496 transitions. [2024-11-20 00:06:59,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 00:06:59,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-20 00:06:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:06:59,759 INFO L225 Difference]: With dead ends: 2593 [2024-11-20 00:06:59,761 INFO L226 Difference]: Without dead ends: 2049 [2024-11-20 00:06:59,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-20 00:06:59,764 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 1746 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:06:59,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 3731 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:06:59,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-20 00:06:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1449. [2024-11-20 00:06:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1297 states have (on average 1.340786430223593) internal successors, (1739), 1315 states have internal predecessors, (1739), 91 states have call successors, (91), 49 states have call predecessors, (91), 59 states have return successors, (132), 85 states have call predecessors, (132), 90 states have call successors, (132) [2024-11-20 00:06:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1962 transitions. [2024-11-20 00:06:59,824 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1962 transitions. Word has length 69 [2024-11-20 00:06:59,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:06:59,825 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1962 transitions. [2024-11-20 00:06:59,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-20 00:06:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1962 transitions. [2024-11-20 00:06:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-20 00:06:59,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:59,830 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 00:06:59,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 00:07:00,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-20 00:07:00,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:00,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash -103634784, now seen corresponding path program 1 times [2024-11-20 00:07:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:00,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458149992] [2024-11-20 00:07:00,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:07:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 00:07:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,142 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-20 00:07:00,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:00,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458149992] [2024-11-20 00:07:00,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458149992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:00,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149387517] [2024-11-20 00:07:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:00,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:00,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:00,145 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) [2024-11-20 00:07:00,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 00:07:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 00:07:00,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:07:00,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:07:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149387517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:07:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-20 00:07:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359921286] [2024-11-20 00:07:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:00,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:07:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:07:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:00,271 INFO L87 Difference]: Start difference. First operand 1449 states and 1962 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 00:07:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:00,339 INFO L93 Difference]: Finished difference Result 2146 states and 2866 transitions. [2024-11-20 00:07:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:07:00,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-20 00:07:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:00,346 INFO L225 Difference]: With dead ends: 2146 [2024-11-20 00:07:00,346 INFO L226 Difference]: Without dead ends: 1327 [2024-11-20 00:07:00,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:00,350 INFO L432 NwaCegarLoop]: 731 mSDtfsCounter, 661 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:00,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 806 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:07:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-20 00:07:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1312. [2024-11-20 00:07:00,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1176 states have (on average 1.344387755102041) internal successors, (1581), 1193 states have internal predecessors, (1581), 83 states have call successors, (83), 43 states have call predecessors, (83), 51 states have return successors, (118), 76 states have call predecessors, (118), 82 states have call successors, (118) [2024-11-20 00:07:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1782 transitions. [2024-11-20 00:07:00,398 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1782 transitions. Word has length 88 [2024-11-20 00:07:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:00,398 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1782 transitions. [2024-11-20 00:07:00,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 00:07:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1782 transitions. [2024-11-20 00:07:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-20 00:07:00,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:00,404 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-20 00:07:00,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 00:07:00,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:00,605 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:00,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2097052475, now seen corresponding path program 1 times [2024-11-20 00:07:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488418779] [2024-11-20 00:07:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 00:07:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-20 00:07:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 00:07:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:07:00,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:00,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488418779] [2024-11-20 00:07:00,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488418779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:00,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990868430] [2024-11-20 00:07:00,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:00,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:00,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:07:00,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 00:07:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 00:07:00,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-20 00:07:00,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:07:00,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990868430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:00,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:07:00,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-20 00:07:00,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274127117] [2024-11-20 00:07:00,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:00,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:07:00,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:00,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:07:00,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:00,831 INFO L87 Difference]: Start difference. First operand 1312 states and 1782 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 00:07:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:00,875 INFO L93 Difference]: Finished difference Result 1691 states and 2250 transitions. [2024-11-20 00:07:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:07:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-20 00:07:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:00,879 INFO L225 Difference]: With dead ends: 1691 [2024-11-20 00:07:00,879 INFO L226 Difference]: Without dead ends: 391 [2024-11-20 00:07:00,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:00,882 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 62 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:00,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1422 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:07:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-20 00:07:00,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-20 00:07:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 358 states have (on average 1.5558659217877095) internal successors, (557), 359 states have internal predecessors, (557), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-20 00:07:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 609 transitions. [2024-11-20 00:07:00,895 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 609 transitions. Word has length 103 [2024-11-20 00:07:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:00,896 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 609 transitions. [2024-11-20 00:07:00,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 00:07:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 609 transitions. [2024-11-20 00:07:00,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:00,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:00,897 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:00,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 00:07:01,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:01,098 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:01,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1351627141, now seen corresponding path program 1 times [2024-11-20 00:07:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:01,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926440778] [2024-11-20 00:07:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:01,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:01,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926440778] [2024-11-20 00:07:01,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926440778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:01,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:01,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:07:01,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167720211] [2024-11-20 00:07:01,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:01,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:07:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:01,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:07:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:01,293 INFO L87 Difference]: Start difference. First operand 391 states and 609 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:02,813 INFO L93 Difference]: Finished difference Result 917 states and 1454 transitions. [2024-11-20 00:07:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:07:02,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:02,816 INFO L225 Difference]: With dead ends: 917 [2024-11-20 00:07:02,816 INFO L226 Difference]: Without dead ends: 533 [2024-11-20 00:07:02,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:07:02,818 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 1047 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:02,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 775 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:07:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-20 00:07:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 391. [2024-11-20 00:07:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 358 states have (on average 1.553072625698324) internal successors, (556), 359 states have internal predecessors, (556), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-20 00:07:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 608 transitions. [2024-11-20 00:07:02,836 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 608 transitions. Word has length 178 [2024-11-20 00:07:02,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:02,836 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 608 transitions. [2024-11-20 00:07:02,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:02,837 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 608 transitions. [2024-11-20 00:07:02,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:02,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:02,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:02,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:07:02,839 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:02,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1440241849, now seen corresponding path program 1 times [2024-11-20 00:07:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038950516] [2024-11-20 00:07:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:03,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:03,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038950516] [2024-11-20 00:07:03,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038950516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:03,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:03,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:07:03,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572528221] [2024-11-20 00:07:03,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:03,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:07:03,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:03,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:07:03,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:03,006 INFO L87 Difference]: Start difference. First operand 391 states and 608 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:04,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:04,442 INFO L93 Difference]: Finished difference Result 909 states and 1437 transitions. [2024-11-20 00:07:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:07:04,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:04,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:04,445 INFO L225 Difference]: With dead ends: 909 [2024-11-20 00:07:04,445 INFO L226 Difference]: Without dead ends: 533 [2024-11-20 00:07:04,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:07:04,447 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 1038 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:04,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 773 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:07:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-20 00:07:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 391. [2024-11-20 00:07:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 358 states have (on average 1.5502793296089385) internal successors, (555), 359 states have internal predecessors, (555), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-20 00:07:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 607 transitions. [2024-11-20 00:07:04,466 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 607 transitions. Word has length 178 [2024-11-20 00:07:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:04,466 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 607 transitions. [2024-11-20 00:07:04,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 607 transitions. [2024-11-20 00:07:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:04,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:04,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:04,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:07:04,467 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:04,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2010513655, now seen corresponding path program 1 times [2024-11-20 00:07:04,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:04,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730738262] [2024-11-20 00:07:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:04,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:04,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:04,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730738262] [2024-11-20 00:07:04,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730738262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:04,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:04,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:07:04,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133103883] [2024-11-20 00:07:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:04,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:07:04,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:04,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:07:04,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:07:04,680 INFO L87 Difference]: Start difference. First operand 391 states and 607 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:06,844 INFO L93 Difference]: Finished difference Result 1433 states and 2280 transitions. [2024-11-20 00:07:06,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:07:06,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:06,850 INFO L225 Difference]: With dead ends: 1433 [2024-11-20 00:07:06,850 INFO L226 Difference]: Without dead ends: 1063 [2024-11-20 00:07:06,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:06,852 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1573 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:06,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 1323 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 00:07:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-20 00:07:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 780. [2024-11-20 00:07:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 719 states have (on average 1.5632823365785813) internal successors, (1124), 721 states have internal predecessors, (1124), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-20 00:07:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1221 transitions. [2024-11-20 00:07:06,890 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1221 transitions. Word has length 178 [2024-11-20 00:07:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:06,890 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1221 transitions. [2024-11-20 00:07:06,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1221 transitions. [2024-11-20 00:07:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:06,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:06,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:06,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:07:06,892 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:06,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1408468365, now seen corresponding path program 1 times [2024-11-20 00:07:06,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666309528] [2024-11-20 00:07:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:06,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:07,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:07,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666309528] [2024-11-20 00:07:07,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666309528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:07,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:07,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164624002] [2024-11-20 00:07:07,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:07,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:07,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:07,136 INFO L87 Difference]: Start difference. First operand 780 states and 1221 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:10,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:10,491 INFO L93 Difference]: Finished difference Result 2372 states and 3780 transitions. [2024-11-20 00:07:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:10,500 INFO L225 Difference]: With dead ends: 2372 [2024-11-20 00:07:10,500 INFO L226 Difference]: Without dead ends: 1613 [2024-11-20 00:07:10,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:10,503 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 1616 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:10,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 2567 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 00:07:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2024-11-20 00:07:10,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1142. [2024-11-20 00:07:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1053 states have (on average 1.5565052231718899) internal successors, (1639), 1056 states have internal predecessors, (1639), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-20 00:07:10,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1780 transitions. [2024-11-20 00:07:10,559 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1780 transitions. Word has length 178 [2024-11-20 00:07:10,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:10,559 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1780 transitions. [2024-11-20 00:07:10,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1780 transitions. [2024-11-20 00:07:10,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:10,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:10,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:10,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:07:10,561 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:10,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:10,561 INFO L85 PathProgramCache]: Analyzing trace with hash 797199307, now seen corresponding path program 1 times [2024-11-20 00:07:10,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:10,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389045256] [2024-11-20 00:07:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:10,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:10,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:10,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389045256] [2024-11-20 00:07:10,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389045256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:10,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:10,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940554091] [2024-11-20 00:07:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:10,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:10,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:10,767 INFO L87 Difference]: Start difference. First operand 1142 states and 1780 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:12,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:12,308 INFO L93 Difference]: Finished difference Result 2752 states and 4381 transitions. [2024-11-20 00:07:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:12,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:12,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:12,314 INFO L225 Difference]: With dead ends: 2752 [2024-11-20 00:07:12,314 INFO L226 Difference]: Without dead ends: 1631 [2024-11-20 00:07:12,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:12,317 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 1240 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:12,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1294 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:07:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-20 00:07:12,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1142. [2024-11-20 00:07:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1053 states have (on average 1.553656220322887) internal successors, (1636), 1056 states have internal predecessors, (1636), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-20 00:07:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1777 transitions. [2024-11-20 00:07:12,376 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1777 transitions. Word has length 178 [2024-11-20 00:07:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:12,376 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1777 transitions. [2024-11-20 00:07:12,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1777 transitions. [2024-11-20 00:07:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:12,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:12,378 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:12,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:07:12,378 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:12,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:12,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1603434103, now seen corresponding path program 1 times [2024-11-20 00:07:12,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:12,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428109405] [2024-11-20 00:07:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:12,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:12,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:12,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428109405] [2024-11-20 00:07:12,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428109405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:12,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:12,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244980128] [2024-11-20 00:07:12,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:12,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:12,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:12,590 INFO L87 Difference]: Start difference. First operand 1142 states and 1777 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:13,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:13,915 INFO L93 Difference]: Finished difference Result 2748 states and 4364 transitions. [2024-11-20 00:07:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:13,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:13,921 INFO L225 Difference]: With dead ends: 2748 [2024-11-20 00:07:13,922 INFO L226 Difference]: Without dead ends: 1627 [2024-11-20 00:07:13,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:13,925 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1314 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:13,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 1088 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:07:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-20 00:07:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1142. [2024-11-20 00:07:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1053 states have (on average 1.550807217473884) internal successors, (1633), 1056 states have internal predecessors, (1633), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-20 00:07:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1774 transitions. [2024-11-20 00:07:14,037 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1774 transitions. Word has length 178 [2024-11-20 00:07:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:14,037 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1774 transitions. [2024-11-20 00:07:14,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1774 transitions. [2024-11-20 00:07:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:14,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:14,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:14,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:07:14,040 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:14,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash -156853237, now seen corresponding path program 1 times [2024-11-20 00:07:14,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:14,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319402850] [2024-11-20 00:07:14,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:14,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:14,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:14,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319402850] [2024-11-20 00:07:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319402850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:14,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176627964] [2024-11-20 00:07:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:14,267 INFO L87 Difference]: Start difference. First operand 1142 states and 1774 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:17,159 INFO L93 Difference]: Finished difference Result 3748 states and 5929 transitions. [2024-11-20 00:07:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:17,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:17,169 INFO L225 Difference]: With dead ends: 3748 [2024-11-20 00:07:17,169 INFO L226 Difference]: Without dead ends: 2627 [2024-11-20 00:07:17,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:17,173 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1596 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 3511 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:17,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 2565 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3511 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 00:07:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2024-11-20 00:07:17,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 1876. [2024-11-20 00:07:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1731 states have (on average 1.5447718082033506) internal successors, (2674), 1736 states have internal predecessors, (2674), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-20 00:07:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2907 transitions. [2024-11-20 00:07:17,288 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2907 transitions. Word has length 178 [2024-11-20 00:07:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:17,288 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2907 transitions. [2024-11-20 00:07:17,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2907 transitions. [2024-11-20 00:07:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:17,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:17,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:17,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:07:17,291 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:17,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1080020663, now seen corresponding path program 1 times [2024-11-20 00:07:17,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:17,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157509086] [2024-11-20 00:07:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157509086] [2024-11-20 00:07:17,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157509086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:17,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:17,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634047880] [2024-11-20 00:07:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:17,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:17,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:17,499 INFO L87 Difference]: Start difference. First operand 1876 states and 2907 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:18,900 INFO L93 Difference]: Finished difference Result 4470 states and 7051 transitions. [2024-11-20 00:07:18,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:18,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:18,911 INFO L225 Difference]: With dead ends: 4470 [2024-11-20 00:07:18,911 INFO L226 Difference]: Without dead ends: 2615 [2024-11-20 00:07:18,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:18,917 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1313 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:18,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1088 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 00:07:18,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2024-11-20 00:07:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1876. [2024-11-20 00:07:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1731 states have (on average 1.5418833044482958) internal successors, (2669), 1736 states have internal predecessors, (2669), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-20 00:07:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2902 transitions. [2024-11-20 00:07:19,040 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2902 transitions. Word has length 178 [2024-11-20 00:07:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:19,041 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2902 transitions. [2024-11-20 00:07:19,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:19,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2902 transitions. [2024-11-20 00:07:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:19,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:19,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:19,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:07:19,043 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:19,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash -694158261, now seen corresponding path program 1 times [2024-11-20 00:07:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445979743] [2024-11-20 00:07:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:19,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:19,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445979743] [2024-11-20 00:07:19,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445979743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:19,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:19,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:19,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192985409] [2024-11-20 00:07:19,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:19,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:19,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:19,260 INFO L87 Difference]: Start difference. First operand 1876 states and 2902 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:22,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:22,280 INFO L93 Difference]: Finished difference Result 6414 states and 10074 transitions. [2024-11-20 00:07:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:22,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:22,298 INFO L225 Difference]: With dead ends: 6414 [2024-11-20 00:07:22,298 INFO L226 Difference]: Without dead ends: 4559 [2024-11-20 00:07:22,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:22,304 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1588 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 3473 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:22,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 2565 Invalid, 3536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3473 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 00:07:22,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4559 states. [2024-11-20 00:07:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4559 to 3346. [2024-11-20 00:07:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 3089 states have (on average 1.536095823891227) internal successors, (4745), 3098 states have internal predecessors, (4745), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-20 00:07:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 5168 transitions. [2024-11-20 00:07:22,510 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 5168 transitions. Word has length 178 [2024-11-20 00:07:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:22,510 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 5168 transitions. [2024-11-20 00:07:22,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 5168 transitions. [2024-11-20 00:07:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:22,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:22,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:22,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:07:22,514 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:22,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash -958805751, now seen corresponding path program 1 times [2024-11-20 00:07:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633058451] [2024-11-20 00:07:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:22,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633058451] [2024-11-20 00:07:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633058451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:22,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688325281] [2024-11-20 00:07:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:22,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:22,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:22,705 INFO L87 Difference]: Start difference. First operand 3346 states and 5168 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:24,241 INFO L93 Difference]: Finished difference Result 7906 states and 12410 transitions. [2024-11-20 00:07:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:24,255 INFO L225 Difference]: With dead ends: 7906 [2024-11-20 00:07:24,256 INFO L226 Difference]: Without dead ends: 4581 [2024-11-20 00:07:24,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:24,264 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1146 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:24,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1295 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:07:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2024-11-20 00:07:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 3346. [2024-11-20 00:07:24,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 3089 states have (on average 1.5331822596309486) internal successors, (4736), 3098 states have internal predecessors, (4736), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-20 00:07:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 5159 transitions. [2024-11-20 00:07:24,462 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 5159 transitions. Word has length 178 [2024-11-20 00:07:24,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:24,463 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 5159 transitions. [2024-11-20 00:07:24,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:24,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 5159 transitions. [2024-11-20 00:07:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:24,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:24,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:24,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:07:24,466 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:24,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:24,467 INFO L85 PathProgramCache]: Analyzing trace with hash 972319883, now seen corresponding path program 1 times [2024-11-20 00:07:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:24,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390169114] [2024-11-20 00:07:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:24,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:24,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:24,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390169114] [2024-11-20 00:07:24,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390169114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:24,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:24,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:24,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041051745] [2024-11-20 00:07:24,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:24,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:24,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:24,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:24,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:24,644 INFO L87 Difference]: Start difference. First operand 3346 states and 5159 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:27,705 INFO L93 Difference]: Finished difference Result 11744 states and 18358 transitions. [2024-11-20 00:07:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:27,726 INFO L225 Difference]: With dead ends: 11744 [2024-11-20 00:07:27,726 INFO L226 Difference]: Without dead ends: 8419 [2024-11-20 00:07:27,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:27,733 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1586 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 3430 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 3493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:27,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 2565 Invalid, 3493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3430 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 00:07:27,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8419 states. [2024-11-20 00:07:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8419 to 6300. [2024-11-20 00:07:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 5819 states have (on average 1.5287850146073207) internal successors, (8896), 5836 states have internal predecessors, (8896), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-20 00:07:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 9717 transitions. [2024-11-20 00:07:28,098 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 9717 transitions. Word has length 178 [2024-11-20 00:07:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:28,098 INFO L471 AbstractCegarLoop]: Abstraction has 6300 states and 9717 transitions. [2024-11-20 00:07:28,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 9717 transitions. [2024-11-20 00:07:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:28,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:28,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:07:28,102 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash -350859063, now seen corresponding path program 1 times [2024-11-20 00:07:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319081629] [2024-11-20 00:07:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:28,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:28,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319081629] [2024-11-20 00:07:28,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319081629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:28,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:28,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921279501] [2024-11-20 00:07:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:28,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:28,300 INFO L87 Difference]: Start difference. First operand 6300 states and 9717 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:29,863 INFO L93 Difference]: Finished difference Result 14760 states and 23109 transitions. [2024-11-20 00:07:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:29,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:29,898 INFO L225 Difference]: With dead ends: 14760 [2024-11-20 00:07:29,898 INFO L226 Difference]: Without dead ends: 8481 [2024-11-20 00:07:29,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:29,914 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 1373 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:29,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 1087 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:07:29,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8481 states. [2024-11-20 00:07:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8481 to 6300. [2024-11-20 00:07:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 5819 states have (on average 1.5258635504382196) internal successors, (8879), 5836 states have internal predecessors, (8879), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-20 00:07:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 9700 transitions. [2024-11-20 00:07:30,298 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 9700 transitions. Word has length 178 [2024-11-20 00:07:30,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:30,299 INFO L471 AbstractCegarLoop]: Abstraction has 6300 states and 9700 transitions. [2024-11-20 00:07:30,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:30,299 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 9700 transitions. [2024-11-20 00:07:30,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:30,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:30,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:30,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:07:30,303 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:30,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash -12571513, now seen corresponding path program 1 times [2024-11-20 00:07:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:30,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107508692] [2024-11-20 00:07:30,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:30,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:30,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107508692] [2024-11-20 00:07:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107508692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:30,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:30,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:30,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829680676] [2024-11-20 00:07:30,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:30,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:30,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:30,492 INFO L87 Difference]: Start difference. First operand 6300 states and 9700 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:34,024 INFO L93 Difference]: Finished difference Result 22388 states and 34910 transitions. [2024-11-20 00:07:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:34,063 INFO L225 Difference]: With dead ends: 22388 [2024-11-20 00:07:34,063 INFO L226 Difference]: Without dead ends: 16109 [2024-11-20 00:07:34,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:34,080 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 1574 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:34,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2565 Invalid, 3441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3378 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 00:07:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16109 states. [2024-11-20 00:07:34,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16109 to 12255. [2024-11-20 00:07:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12255 states, 11326 states have (on average 1.5233092000706339) internal successors, (17253), 11359 states have internal predecessors, (17253), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-20 00:07:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12255 states to 12255 states and 18924 transitions. [2024-11-20 00:07:34,876 INFO L78 Accepts]: Start accepts. Automaton has 12255 states and 18924 transitions. Word has length 178 [2024-11-20 00:07:34,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:34,876 INFO L471 AbstractCegarLoop]: Abstraction has 12255 states and 18924 transitions. [2024-11-20 00:07:34,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:34,877 INFO L276 IsEmpty]: Start isEmpty. Operand 12255 states and 18924 transitions. [2024-11-20 00:07:34,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:34,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:34,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:34,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:07:34,884 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:34,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:34,885 INFO L85 PathProgramCache]: Analyzing trace with hash 413982985, now seen corresponding path program 1 times [2024-11-20 00:07:34,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:34,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407924204] [2024-11-20 00:07:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:34,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:34,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:35,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:35,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:35,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:35,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:35,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:35,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407924204] [2024-11-20 00:07:35,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407924204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:35,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:35,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:35,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790970217] [2024-11-20 00:07:35,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:35,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:35,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:35,065 INFO L87 Difference]: Start difference. First operand 12255 states and 18924 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:37,124 INFO L93 Difference]: Finished difference Result 28506 states and 44668 transitions. [2024-11-20 00:07:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:37,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:37,186 INFO L225 Difference]: With dead ends: 28506 [2024-11-20 00:07:37,186 INFO L226 Difference]: Without dead ends: 16272 [2024-11-20 00:07:37,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:37,213 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1312 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:37,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 1086 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 00:07:37,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16272 states. [2024-11-20 00:07:38,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16272 to 12255. [2024-11-20 00:07:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12255 states, 11326 states have (on average 1.5203955500618047) internal successors, (17220), 11359 states have internal predecessors, (17220), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-20 00:07:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12255 states to 12255 states and 18891 transitions. [2024-11-20 00:07:38,189 INFO L78 Accepts]: Start accepts. Automaton has 12255 states and 18891 transitions. Word has length 178 [2024-11-20 00:07:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:38,189 INFO L471 AbstractCegarLoop]: Abstraction has 12255 states and 18891 transitions. [2024-11-20 00:07:38,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 12255 states and 18891 transitions. [2024-11-20 00:07:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:38,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:38,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:38,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:07:38,196 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:38,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:38,197 INFO L85 PathProgramCache]: Analyzing trace with hash -126446521, now seen corresponding path program 1 times [2024-11-20 00:07:38,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:38,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220789753] [2024-11-20 00:07:38,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:38,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:38,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220789753] [2024-11-20 00:07:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220789753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:38,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:38,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162422899] [2024-11-20 00:07:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:38,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:38,380 INFO L87 Difference]: Start difference. First operand 12255 states and 18891 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:43,166 INFO L93 Difference]: Finished difference Result 48995 states and 76354 transitions. [2024-11-20 00:07:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:07:43,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:43,285 INFO L225 Difference]: With dead ends: 48995 [2024-11-20 00:07:43,286 INFO L226 Difference]: Without dead ends: 36761 [2024-11-20 00:07:43,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:07:43,324 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 2012 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 3398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:43,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 2551 Invalid, 3398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3332 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-20 00:07:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36761 states. [2024-11-20 00:07:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36761 to 23969. [2024-11-20 00:07:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23969 states, 22176 states have (on average 1.519119769119769) internal successors, (33688), 22241 states have internal predecessors, (33688), 1338 states have call successors, (1338), 390 states have call predecessors, (1338), 454 states have return successors, (2131), 1401 states have call predecessors, (2131), 1338 states have call successors, (2131) [2024-11-20 00:07:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23969 states to 23969 states and 37157 transitions. [2024-11-20 00:07:44,974 INFO L78 Accepts]: Start accepts. Automaton has 23969 states and 37157 transitions. Word has length 178 [2024-11-20 00:07:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:44,974 INFO L471 AbstractCegarLoop]: Abstraction has 23969 states and 37157 transitions. [2024-11-20 00:07:44,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 23969 states and 37157 transitions. [2024-11-20 00:07:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:44,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:44,984 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:44,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:07:44,984 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:44,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash -282427063, now seen corresponding path program 1 times [2024-11-20 00:07:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:44,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658202426] [2024-11-20 00:07:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:45,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:45,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658202426] [2024-11-20 00:07:45,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658202426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:45,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:45,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:45,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556162573] [2024-11-20 00:07:45,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:45,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:45,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:45,232 INFO L87 Difference]: Start difference. First operand 23969 states and 37157 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:52,336 INFO L93 Difference]: Finished difference Result 95395 states and 149450 transitions. [2024-11-20 00:07:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:07:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:07:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:52,555 INFO L225 Difference]: With dead ends: 95395 [2024-11-20 00:07:52,555 INFO L226 Difference]: Without dead ends: 71447 [2024-11-20 00:07:52,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:07:52,619 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 1668 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 4006 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 4071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:52,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 2555 Invalid, 4071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4006 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 00:07:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71447 states. [2024-11-20 00:07:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71447 to 47522. [2024-11-20 00:07:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47522 states, 44033 states have (on average 1.5194513206004587) internal successors, (66906), 44162 states have internal predecessors, (66906), 2586 states have call successors, (2586), 774 states have call predecessors, (2586), 902 states have return successors, (4901), 2713 states have call predecessors, (4901), 2586 states have call successors, (4901) [2024-11-20 00:07:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47522 states to 47522 states and 74393 transitions. [2024-11-20 00:07:56,366 INFO L78 Accepts]: Start accepts. Automaton has 47522 states and 74393 transitions. Word has length 178 [2024-11-20 00:07:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:56,366 INFO L471 AbstractCegarLoop]: Abstraction has 47522 states and 74393 transitions. [2024-11-20 00:07:56,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:07:56,366 INFO L276 IsEmpty]: Start isEmpty. Operand 47522 states and 74393 transitions. [2024-11-20 00:07:56,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-20 00:07:56,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:56,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:56,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:07:56,393 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:56,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 128183303, now seen corresponding path program 1 times [2024-11-20 00:07:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899026374] [2024-11-20 00:07:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:56,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 00:07:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-20 00:07:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:07:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 00:07:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:56,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899026374] [2024-11-20 00:07:56,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899026374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:56,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:56,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:56,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069473119] [2024-11-20 00:07:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:56,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:56,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:56,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:56,642 INFO L87 Difference]: Start difference. First operand 47522 states and 74393 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 00:08:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:08,505 INFO L93 Difference]: Finished difference Result 187426 states and 296400 transitions. [2024-11-20 00:08:08,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:08:08,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-20 00:08:08,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:08,927 INFO L225 Difference]: With dead ends: 187426 [2024-11-20 00:08:08,928 INFO L226 Difference]: Without dead ends: 139925 [2024-11-20 00:08:09,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-20 00:08:09,048 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 1933 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 3307 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:09,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2555 Invalid, 3373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3307 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 00:08:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139925 states.