./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 4a390ef5 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-dev-4a390ef-m [2024-10-24 03:00:48,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:00:48,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 03:00:48,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:00:48,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:00:48,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:00:48,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:00:48,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:00:48,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:00:48,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:00:48,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:00:48,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:00:48,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:00:48,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:00:48,485 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:00:48,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:00:48,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:00:48,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:00:48,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:00:48,487 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:00:48,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 03:00:48,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:00:48,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:00:48,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:00:48,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:00:48,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:00:48,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:00:48,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:00:48,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:00:48,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:00:48,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:00:48,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb07c62e0c8f9c002ab72b797de071664dce20871b109c1b4c0b79acbb73493c [2024-10-24 03:00:48,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:00:48,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:00:48,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:00:48,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:00:48,718 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:00:48,719 INFO L431 ainManager$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 [2024-10-24 03:00:49,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:00:50,141 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:00:50,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.12.cil-2.c [2024-10-24 03:00:50,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12b63c347/7fb1855461044a52bf77202cceaa4432/FLAGb4dcd317a [2024-10-24 03:00:50,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12b63c347/7fb1855461044a52bf77202cceaa4432 [2024-10-24 03:00:50,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:00:50,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:00:50,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:00:50,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:00:50,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:00:50,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:50" (1/1) ... [2024-10-24 03:00:50,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17aa418b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:50, skipping insertion in model container [2024-10-24 03:00:50,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:50" (1/1) ... [2024-10-24 03:00:50,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:00:50,717 WARN L248 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] [2024-10-24 03:00:50,752 WARN L248 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] [2024-10-24 03:00:50,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:00:50,902 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:00:50,913 WARN L248 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] [2024-10-24 03:00:50,926 WARN L248 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] [2024-10-24 03:00:50,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:00:51,002 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:00:51,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51 WrapperNode [2024-10-24 03:00:51,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:00:51,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:00:51,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:00:51,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:00:51,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,056 INFO L138 Inliner]: procedures = 72, calls = 84, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 1083 [2024-10-24 03:00:51,057 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:00:51,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:00:51,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:00:51,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:00:51,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,094 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]. [2024-10-24 03:00:51,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:00:51,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:00:51,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:00:51,147 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:00:51,148 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (1/1) ... [2024-10-24 03:00:51,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:00:51,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:51,190 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) [2024-10-24 03:00:51,192 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 [2024-10-24 03:00:51,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:00:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 03:00:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 03:00:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-10-24 03:00:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-10-24 03:00:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-10-24 03:00:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-10-24 03:00:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-10-24 03:00:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-10-24 03:00:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-10-24 03:00:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-10-24 03:00:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-10-24 03:00:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-10-24 03:00:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-10-24 03:00:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-10-24 03:00:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:00:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-10-24 03:00:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-10-24 03:00:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:00:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:00:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-10-24 03:00:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-10-24 03:00:51,356 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:00:51,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:00:52,137 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-10-24 03:00:52,137 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:00:52,208 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:00:52,208 INFO L314 CfgBuilder]: Removed 19 assume(true) statements. [2024-10-24 03:00:52,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:52 BoogieIcfgContainer [2024-10-24 03:00:52,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:00:52,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:00:52,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:00:52,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:00:52,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:00:50" (1/3) ... [2024-10-24 03:00:52,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1716ca2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:52, skipping insertion in model container [2024-10-24 03:00:52,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:51" (2/3) ... [2024-10-24 03:00:52,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1716ca2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:52, skipping insertion in model container [2024-10-24 03:00:52,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:52" (3/3) ... [2024-10-24 03:00:52,215 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.12.cil-2.c [2024-10-24 03:00:52,227 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:00:52,227 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 03:00:52,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:00:52,281 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;@216885c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:00:52,282 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 03:00:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 367 states have (on average 1.7247956403269755) internal successors, (633), 372 states have internal predecessors, (633), 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) [2024-10-24 03:00:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 03:00:52,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:52,294 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] [2024-10-24 03:00:52,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:52,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1061080809, now seen corresponding path program 1 times [2024-10-24 03:00:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54175579] [2024-10-24 03:00:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:52,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:52,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54175579] [2024-10-24 03:00:52,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54175579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:52,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:52,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61106154] [2024-10-24 03:00:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:52,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:52,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:52,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:52,585 INFO L87 Difference]: Start difference. First operand has 411 states, 367 states have (on average 1.7247956403269755) internal successors, (633), 372 states have internal predecessors, (633), 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 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-24 03:00:53,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:53,225 INFO L93 Difference]: Finished difference Result 863 states and 1458 transitions. [2024-10-24 03:00:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:53,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 37 [2024-10-24 03:00:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:53,241 INFO L225 Difference]: With dead ends: 863 [2024-10-24 03:00:53,241 INFO L226 Difference]: Without dead ends: 469 [2024-10-24 03:00:53,247 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 [2024-10-24 03:00:53,249 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 886 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:53,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 696 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:00:53,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-24 03:00:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 463. [2024-10-24 03:00:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 414 states have (on average 1.5893719806763285) internal successors, (658), 418 states have internal predecessors, (658), 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) [2024-10-24 03:00:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 734 transitions. [2024-10-24 03:00:53,315 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 734 transitions. Word has length 37 [2024-10-24 03:00:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:53,315 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 734 transitions. [2024-10-24 03:00:53,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-24 03:00:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 734 transitions. [2024-10-24 03:00:53,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 03:00:53,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:53,320 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] [2024-10-24 03:00:53,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:00:53,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:53,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:53,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1285072114, now seen corresponding path program 1 times [2024-10-24 03:00:53,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893000630] [2024-10-24 03:00:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 03:00:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:53,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:53,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893000630] [2024-10-24 03:00:53,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893000630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:53,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:53,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:53,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645247362] [2024-10-24 03:00:53,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:53,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:53,409 INFO L87 Difference]: Start difference. First operand 463 states and 734 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-24 03:00:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:53,834 INFO L93 Difference]: Finished difference Result 697 states and 1078 transitions. [2024-10-24 03:00:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:53,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 38 [2024-10-24 03:00:53,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:53,839 INFO L225 Difference]: With dead ends: 697 [2024-10-24 03:00:53,839 INFO L226 Difference]: Without dead ends: 586 [2024-10-24 03:00:53,840 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 [2024-10-24 03:00:53,840 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 899 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:53,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 697 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-10-24 03:00:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 563. [2024-10-24 03:00:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 501 states have (on average 1.5489021956087825) internal successors, (776), 506 states have internal predecessors, (776), 44 states have call successors, (44), 15 states have call predecessors, (44), 16 states have return successors, (54), 42 states have call predecessors, (54), 42 states have call successors, (54) [2024-10-24 03:00:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 874 transitions. [2024-10-24 03:00:53,888 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 874 transitions. Word has length 38 [2024-10-24 03:00:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:53,888 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 874 transitions. [2024-10-24 03:00:53,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-24 03:00:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 874 transitions. [2024-10-24 03:00:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 03:00:53,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:53,893 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] [2024-10-24 03:00:53,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:00:53,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:53,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash -652138764, now seen corresponding path program 1 times [2024-10-24 03:00:53,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777389891] [2024-10-24 03:00:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 03:00:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:53,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777389891] [2024-10-24 03:00:53,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777389891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:53,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:53,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007147603] [2024-10-24 03:00:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:53,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:53,968 INFO L87 Difference]: Start difference. First operand 563 states and 874 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-24 03:00:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:54,533 INFO L93 Difference]: Finished difference Result 983 states and 1455 transitions. [2024-10-24 03:00:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 39 [2024-10-24 03:00:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:54,538 INFO L225 Difference]: With dead ends: 983 [2024-10-24 03:00:54,538 INFO L226 Difference]: Without dead ends: 772 [2024-10-24 03:00:54,539 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 [2024-10-24 03:00:54,539 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 346 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:54,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 987 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:00:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-10-24 03:00:54,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 668. [2024-10-24 03:00:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 594 states have (on average 1.5235690235690236) internal successors, (905), 601 states have internal predecessors, (905), 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) [2024-10-24 03:00:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1015 transitions. [2024-10-24 03:00:54,571 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1015 transitions. Word has length 39 [2024-10-24 03:00:54,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:54,571 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1015 transitions. [2024-10-24 03:00:54,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-10-24 03:00:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1015 transitions. [2024-10-24 03:00:54,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-24 03:00:54,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:54,576 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] [2024-10-24 03:00:54,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:00:54,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:54,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2082821182, now seen corresponding path program 1 times [2024-10-24 03:00:54,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:54,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108510198] [2024-10-24 03:00:54,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:54,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:54,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 03:00:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:54,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 03:00:54,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:54,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108510198] [2024-10-24 03:00:54,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108510198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:54,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:54,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:54,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093414502] [2024-10-24 03:00:54,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:54,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:54,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:54,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:54,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:54,669 INFO L87 Difference]: Start difference. First operand 668 states and 1015 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-24 03:00:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:55,179 INFO L93 Difference]: Finished difference Result 1184 states and 1732 transitions. [2024-10-24 03:00:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 54 [2024-10-24 03:00:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:55,184 INFO L225 Difference]: With dead ends: 1184 [2024-10-24 03:00:55,184 INFO L226 Difference]: Without dead ends: 868 [2024-10-24 03:00:55,184 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 [2024-10-24 03:00:55,185 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 331 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:55,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1031 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:00:55,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-10-24 03:00:55,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 834. [2024-10-24 03:00:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 736 states have (on average 1.46875) internal successors, (1081), 745 states have internal predecessors, (1081), 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) [2024-10-24 03:00:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1229 transitions. [2024-10-24 03:00:55,213 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1229 transitions. Word has length 54 [2024-10-24 03:00:55,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:55,213 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1229 transitions. [2024-10-24 03:00:55,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-24 03:00:55,213 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1229 transitions. [2024-10-24 03:00:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 03:00:55,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:55,215 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:55,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:00:55,215 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:55,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash -775611185, now seen corresponding path program 1 times [2024-10-24 03:00:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:55,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188226011] [2024-10-24 03:00:55,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:55,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 03:00:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 03:00:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:00:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188226011] [2024-10-24 03:00:55,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188226011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:55,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:55,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:55,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807821214] [2024-10-24 03:00:55,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:55,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:55,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:55,259 INFO L87 Difference]: Start difference. First operand 834 states and 1229 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-24 03:00:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:55,641 INFO L93 Difference]: Finished difference Result 1413 states and 2008 transitions. [2024-10-24 03:00:55,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:55,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 59 [2024-10-24 03:00:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:55,647 INFO L225 Difference]: With dead ends: 1413 [2024-10-24 03:00:55,647 INFO L226 Difference]: Without dead ends: 1011 [2024-10-24 03:00:55,649 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 [2024-10-24 03:00:55,650 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 885 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:55,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 709 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:00:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-10-24 03:00:55,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 962. [2024-10-24 03:00:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 848 states have (on average 1.4339622641509433) internal successors, (1216), 859 states have internal predecessors, (1216), 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) [2024-10-24 03:00:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1386 transitions. [2024-10-24 03:00:55,700 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1386 transitions. Word has length 59 [2024-10-24 03:00:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:55,701 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1386 transitions. [2024-10-24 03:00:55,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-10-24 03:00:55,702 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1386 transitions. [2024-10-24 03:00:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:55,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:55,703 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:55,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:00:55,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:55,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1102984900, now seen corresponding path program 1 times [2024-10-24 03:00:55,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:55,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274380420] [2024-10-24 03:00:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:55,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 03:00:55,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:55,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274380420] [2024-10-24 03:00:55,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274380420] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:55,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64715589] [2024-10-24 03:00:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:55,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:55,803 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) [2024-10-24 03:00:55,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 03:00:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:55,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:00:55,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 03:00:55,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:55,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64715589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:55,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:55,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 03:00:55,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388141845] [2024-10-24 03:00:55,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:55,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:55,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:55,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:55,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:55,922 INFO L87 Difference]: Start difference. First operand 962 states and 1386 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:56,034 INFO L93 Difference]: Finished difference Result 1450 states and 2060 transitions. [2024-10-24 03:00:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:00:56,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-24 03:00:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:56,038 INFO L225 Difference]: With dead ends: 1450 [2024-10-24 03:00:56,038 INFO L226 Difference]: Without dead ends: 967 [2024-10-24 03:00:56,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:56,040 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 0 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:56,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1789 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-10-24 03:00:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2024-10-24 03:00:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 853 states have (on average 1.422039859320047) internal successors, (1213), 864 states have internal predecessors, (1213), 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) [2024-10-24 03:00:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1383 transitions. [2024-10-24 03:00:56,070 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1383 transitions. Word has length 60 [2024-10-24 03:00:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:56,070 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1383 transitions. [2024-10-24 03:00:56,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1383 transitions. [2024-10-24 03:00:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:56,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:56,071 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:56,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 03:00:56,272 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 [2024-10-24 03:00:56,273 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:56,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 258979398, now seen corresponding path program 1 times [2024-10-24 03:00:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:56,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632090406] [2024-10-24 03:00:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 03:00:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632090406] [2024-10-24 03:00:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632090406] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846936963] [2024-10-24 03:00:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:56,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:56,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:56,344 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) [2024-10-24 03:00:56,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 03:00:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 03:00:56,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 03:00:56,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:56,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846936963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:56,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:56,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-10-24 03:00:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527276398] [2024-10-24 03:00:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:56,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:56,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:56,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:56,440 INFO L87 Difference]: Start difference. First operand 967 states and 1383 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:56,553 INFO L93 Difference]: Finished difference Result 1393 states and 1962 transitions. [2024-10-24 03:00:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:00:56,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-24 03:00:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:56,557 INFO L225 Difference]: With dead ends: 1393 [2024-10-24 03:00:56,557 INFO L226 Difference]: Without dead ends: 864 [2024-10-24 03:00:56,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:56,559 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 0 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:56,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1789 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-10-24 03:00:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 857. [2024-10-24 03:00:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 761 states have (on average 1.4323258869908015) internal successors, (1090), 770 states have internal predecessors, (1090), 62 states have call successors, (62), 29 states have call predecessors, (62), 32 states have return successors, (79), 58 states have call predecessors, (79), 60 states have call successors, (79) [2024-10-24 03:00:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1231 transitions. [2024-10-24 03:00:56,587 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1231 transitions. Word has length 60 [2024-10-24 03:00:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:56,587 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1231 transitions. [2024-10-24 03:00:56,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:00:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1231 transitions. [2024-10-24 03:00:56,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 03:00:56,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:56,590 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:56,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 03:00:56,794 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 [2024-10-24 03:00:56,795 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:56,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2056619014, now seen corresponding path program 1 times [2024-10-24 03:00:56,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:56,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103927515] [2024-10-24 03:00:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:56,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:56,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103927515] [2024-10-24 03:00:56,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103927515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:56,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:56,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:00:56,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775003147] [2024-10-24 03:00:56,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:56,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:00:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:00:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:56,864 INFO L87 Difference]: Start difference. First operand 857 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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) [2024-10-24 03:00:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:57,291 INFO L93 Difference]: Finished difference Result 942 states and 1334 transitions. [2024-10-24 03:00:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:00:57,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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 60 [2024-10-24 03:00:57,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:57,295 INFO L225 Difference]: With dead ends: 942 [2024-10-24 03:00:57,295 INFO L226 Difference]: Without dead ends: 939 [2024-10-24 03:00:57,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:00:57,296 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 1481 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:57,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 706 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:00:57,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-10-24 03:00:57,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 856. [2024-10-24 03:00:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 761 states have (on average 1.4296977660972405) internal successors, (1088), 769 states have internal predecessors, (1088), 61 states have call successors, (61), 29 states have call predecessors, (61), 32 states have return successors, (79), 58 states have call predecessors, (79), 60 states have call successors, (79) [2024-10-24 03:00:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1228 transitions. [2024-10-24 03:00:57,338 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1228 transitions. Word has length 60 [2024-10-24 03:00:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:57,338 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1228 transitions. [2024-10-24 03:00:57,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 4 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) [2024-10-24 03:00:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1228 transitions. [2024-10-24 03:00:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-24 03:00:57,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:57,340 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:57,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:00:57,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash -670725648, now seen corresponding path program 1 times [2024-10-24 03:00:57,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:57,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417726535] [2024-10-24 03:00:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:57,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:57,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:57,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:57,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 03:00:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:57,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:57,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417726535] [2024-10-24 03:00:57,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417726535] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:57,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934003766] [2024-10-24 03:00:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:57,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:57,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:57,475 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) [2024-10-24 03:00:57,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 03:00:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:57,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 03:00:57,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:57,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 03:00:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 03:00:57,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934003766] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 03:00:57,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 03:00:57,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 8 [2024-10-24 03:00:57,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605398245] [2024-10-24 03:00:57,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 03:00:57,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 03:00:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 03:00:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:00:57,812 INFO L87 Difference]: Start difference. First operand 856 states and 1228 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-24 03:00:58,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:58,594 INFO L93 Difference]: Finished difference Result 1659 states and 2263 transitions. [2024-10-24 03:00:58,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 03:00:58,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 61 [2024-10-24 03:00:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:58,601 INFO L225 Difference]: With dead ends: 1659 [2024-10-24 03:00:58,602 INFO L226 Difference]: Without dead ends: 1656 [2024-10-24 03:00:58,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-24 03:00:58,604 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1081 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:58,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1646 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:00:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-10-24 03:00:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1159. [2024-10-24 03:00:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1028 states have (on average 1.394941634241245) internal successors, (1434), 1042 states have internal predecessors, (1434), 80 states have call successors, (80), 42 states have call predecessors, (80), 49 states have return successors, (109), 75 states have call predecessors, (109), 79 states have call successors, (109) [2024-10-24 03:00:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1623 transitions. [2024-10-24 03:00:58,650 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1623 transitions. Word has length 61 [2024-10-24 03:00:58,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:58,650 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1623 transitions. [2024-10-24 03:00:58,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-10-24 03:00:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1623 transitions. [2024-10-24 03:00:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 03:00:58,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:58,652 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 03:00:58,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 03:00:58,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:58,853 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:58,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1722584425, now seen corresponding path program 2 times [2024-10-24 03:00:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:58,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586951413] [2024-10-24 03:00:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:58,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:58,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:58,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 03:00:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:58,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 03:00:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 03:00:58,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:58,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586951413] [2024-10-24 03:00:58,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586951413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:58,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:58,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:00:58,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423264280] [2024-10-24 03:00:58,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:58,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:00:58,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:58,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:00:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:00:58,898 INFO L87 Difference]: Start difference. First operand 1159 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 03:00:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:59,286 INFO L93 Difference]: Finished difference Result 1787 states and 2440 transitions. [2024-10-24 03:00:59,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:00:59,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2024-10-24 03:00:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:59,291 INFO L225 Difference]: With dead ends: 1787 [2024-10-24 03:00:59,291 INFO L226 Difference]: Without dead ends: 1128 [2024-10-24 03:00:59,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:59,293 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 898 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:59,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 725 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:00:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-10-24 03:00:59,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1051. [2024-10-24 03:00:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 933 states have (on average 1.39978563772776) internal successors, (1306), 947 states have internal predecessors, (1306), 73 states have call successors, (73), 37 states have call predecessors, (73), 43 states have return successors, (98), 67 states have call predecessors, (98), 72 states have call successors, (98) [2024-10-24 03:00:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1477 transitions. [2024-10-24 03:00:59,343 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1477 transitions. Word has length 78 [2024-10-24 03:00:59,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:59,344 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1477 transitions. [2024-10-24 03:00:59,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 03:00:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1477 transitions. [2024-10-24 03:00:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 03:00:59,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:59,346 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 03:00:59,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:00:59,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:59,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash 234886168, now seen corresponding path program 1 times [2024-10-24 03:00:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188073663] [2024-10-24 03:00:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 03:00:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 03:00:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 03:00:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 03:00:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-24 03:00:59,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188073663] [2024-10-24 03:00:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188073663] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 03:00:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810960099] [2024-10-24 03:00:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:59,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:59,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:00:59,416 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) [2024-10-24 03:00:59,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 03:00:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 03:00:59,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 03:00:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 03:00:59,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 03:00:59,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810960099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:59,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 03:00:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-24 03:00:59,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431011493] [2024-10-24 03:00:59,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:59,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 03:00:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:59,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 03:00:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:00:59,519 INFO L87 Difference]: Start difference. First operand 1051 states and 1477 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, (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) [2024-10-24 03:00:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:00:59,605 INFO L93 Difference]: Finished difference Result 1334 states and 1833 transitions. [2024-10-24 03:00:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 03:00:59,605 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, (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 92 [2024-10-24 03:00:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:00:59,607 INFO L225 Difference]: With dead ends: 1334 [2024-10-24 03:00:59,607 INFO L226 Difference]: Without dead ends: 347 [2024-10-24 03:00:59,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:00:59,609 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 55 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:00:59,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1208 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:00:59,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-24 03:00:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-10-24 03:00:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 314 states have (on average 1.6337579617834395) internal successors, (513), 315 states have internal predecessors, (513), 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) [2024-10-24 03:00:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 565 transitions. [2024-10-24 03:00:59,620 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 565 transitions. Word has length 92 [2024-10-24 03:00:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:00:59,620 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 565 transitions. [2024-10-24 03:00:59,620 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, (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) [2024-10-24 03:00:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 565 transitions. [2024-10-24 03:00:59,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:00:59,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:00:59,621 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] [2024-10-24 03:00:59,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 03:00:59,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 03:00:59,822 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:00:59,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:00:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash 21736103, now seen corresponding path program 1 times [2024-10-24 03:00:59,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:00:59,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440463634] [2024-10-24 03:00:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:00:59,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:00:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:00:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:00:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:00:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:00:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:00:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:00:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:00:59,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:00:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440463634] [2024-10-24 03:00:59,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440463634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:00:59,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:00:59,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:00:59,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914422106] [2024-10-24 03:00:59,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:00:59,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:00:59,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:00:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:00:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:00:59,985 INFO L87 Difference]: Start difference. First operand 347 states and 565 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-10-24 03:01:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:01,351 INFO L93 Difference]: Finished difference Result 819 states and 1356 transitions. [2024-10-24 03:01:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:01:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:01,354 INFO L225 Difference]: With dead ends: 819 [2024-10-24 03:01:01,354 INFO L226 Difference]: Without dead ends: 477 [2024-10-24 03:01:01,355 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 [2024-10-24 03:01:01,355 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 977 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:01,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 622 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:01:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-24 03:01:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 347. [2024-10-24 03:01:01,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 314 states have (on average 1.6305732484076434) internal successors, (512), 315 states have internal predecessors, (512), 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) [2024-10-24 03:01:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 564 transitions. [2024-10-24 03:01:01,372 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 564 transitions. Word has length 161 [2024-10-24 03:01:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:01,372 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 564 transitions. [2024-10-24 03:01:01,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-10-24 03:01:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 564 transitions. [2024-10-24 03:01:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:01,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:01,374 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] [2024-10-24 03:01:01,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:01:01,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:01,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1791207717, now seen corresponding path program 1 times [2024-10-24 03:01:01,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:01,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665758070] [2024-10-24 03:01:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:01,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:01,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:01,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665758070] [2024-10-24 03:01:01,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665758070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:01,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:01,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:01:01,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790025467] [2024-10-24 03:01:01,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:01,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:01:01,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:01,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:01:01,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:01:01,545 INFO L87 Difference]: Start difference. First operand 347 states and 564 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-10-24 03:01:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:02,773 INFO L93 Difference]: Finished difference Result 811 states and 1339 transitions. [2024-10-24 03:01:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:01:02,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:02,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:02,777 INFO L225 Difference]: With dead ends: 811 [2024-10-24 03:01:02,777 INFO L226 Difference]: Without dead ends: 477 [2024-10-24 03:01:02,777 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 [2024-10-24 03:01:02,778 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 968 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:02,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 620 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:01:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-24 03:01:02,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 347. [2024-10-24 03:01:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 314 states have (on average 1.627388535031847) internal successors, (511), 315 states have internal predecessors, (511), 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) [2024-10-24 03:01:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 563 transitions. [2024-10-24 03:01:02,795 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 563 transitions. Word has length 161 [2024-10-24 03:01:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:02,795 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 563 transitions. [2024-10-24 03:01:02,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-10-24 03:01:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 563 transitions. [2024-10-24 03:01:02,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:02,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:02,797 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] [2024-10-24 03:01:02,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:01:02,797 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:02,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:02,798 INFO L85 PathProgramCache]: Analyzing trace with hash -139917917, now seen corresponding path program 1 times [2024-10-24 03:01:02,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:02,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518704010] [2024-10-24 03:01:02,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:02,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:02,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518704010] [2024-10-24 03:01:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518704010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:02,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:02,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 03:01:02,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146441884] [2024-10-24 03:01:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:02,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 03:01:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 03:01:02,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:01:02,994 INFO L87 Difference]: Start difference. First operand 347 states and 563 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-10-24 03:01:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:04,993 INFO L93 Difference]: Finished difference Result 1282 states and 2129 transitions. [2024-10-24 03:01:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 03:01:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:04,997 INFO L225 Difference]: With dead ends: 1282 [2024-10-24 03:01:04,997 INFO L226 Difference]: Without dead ends: 954 [2024-10-24 03:01:04,998 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 [2024-10-24 03:01:04,998 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 1476 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:04,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1048 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 03:01:04,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-10-24 03:01:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 695. [2024-10-24 03:01:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 634 states have (on average 1.638801261829653) internal successors, (1039), 636 states have internal predecessors, (1039), 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) [2024-10-24 03:01:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1136 transitions. [2024-10-24 03:01:05,030 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1136 transitions. Word has length 161 [2024-10-24 03:01:05,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:05,031 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 1136 transitions. [2024-10-24 03:01:05,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-10-24 03:01:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1136 transitions. [2024-10-24 03:01:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:05,032 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:05,032 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] [2024-10-24 03:01:05,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:01:05,032 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:05,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash -626700829, now seen corresponding path program 1 times [2024-10-24 03:01:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426185275] [2024-10-24 03:01:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:05,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:05,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426185275] [2024-10-24 03:01:05,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426185275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:05,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:05,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149289538] [2024-10-24 03:01:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:05,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:05,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:05,246 INFO L87 Difference]: Start difference. First operand 695 states and 1136 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:08,183 INFO L93 Difference]: Finished difference Result 2127 states and 3535 transitions. [2024-10-24 03:01:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:01:08,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:08,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:08,188 INFO L225 Difference]: With dead ends: 2127 [2024-10-24 03:01:08,189 INFO L226 Difference]: Without dead ends: 1451 [2024-10-24 03:01:08,190 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 [2024-10-24 03:01:08,190 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1521 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:08,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 1992 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 03:01:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2024-10-24 03:01:08,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1016. [2024-10-24 03:01:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 927 states have (on average 1.6321467098166127) internal successors, (1513), 930 states have internal predecessors, (1513), 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) [2024-10-24 03:01:08,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1654 transitions. [2024-10-24 03:01:08,250 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1654 transitions. Word has length 161 [2024-10-24 03:01:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:08,251 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1654 transitions. [2024-10-24 03:01:08,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:08,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1654 transitions. [2024-10-24 03:01:08,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:08,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:08,252 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] [2024-10-24 03:01:08,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:01:08,252 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:08,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:08,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1880396645, now seen corresponding path program 1 times [2024-10-24 03:01:08,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:08,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908604248] [2024-10-24 03:01:08,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:08,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:08,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:08,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908604248] [2024-10-24 03:01:08,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908604248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:08,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40116966] [2024-10-24 03:01:08,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:08,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:08,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:08,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:08,467 INFO L87 Difference]: Start difference. First operand 1016 states and 1654 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:09,694 INFO L93 Difference]: Finished difference Result 2466 states and 4095 transitions. [2024-10-24 03:01:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:09,700 INFO L225 Difference]: With dead ends: 2466 [2024-10-24 03:01:09,700 INFO L226 Difference]: Without dead ends: 1469 [2024-10-24 03:01:09,702 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 [2024-10-24 03:01:09,702 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1322 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:09,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 861 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 03:01:09,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2024-10-24 03:01:09,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1016. [2024-10-24 03:01:09,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 927 states have (on average 1.62891046386192) internal successors, (1510), 930 states have internal predecessors, (1510), 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) [2024-10-24 03:01:09,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1651 transitions. [2024-10-24 03:01:09,764 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1651 transitions. Word has length 161 [2024-10-24 03:01:09,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:09,765 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1651 transitions. [2024-10-24 03:01:09,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1651 transitions. [2024-10-24 03:01:09,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:09,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:09,766 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] [2024-10-24 03:01:09,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:01:09,766 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:09,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1950044519, now seen corresponding path program 1 times [2024-10-24 03:01:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069244565] [2024-10-24 03:01:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:09,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:09,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069244565] [2024-10-24 03:01:09,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069244565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:09,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:09,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:09,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427958078] [2024-10-24 03:01:09,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:09,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:09,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:09,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:09,952 INFO L87 Difference]: Start difference. First operand 1016 states and 1651 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:11,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:11,376 INFO L93 Difference]: Finished difference Result 2462 states and 4078 transitions. [2024-10-24 03:01:11,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:11,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:11,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:11,381 INFO L225 Difference]: With dead ends: 2462 [2024-10-24 03:01:11,381 INFO L226 Difference]: Without dead ends: 1465 [2024-10-24 03:01:11,383 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 [2024-10-24 03:01:11,384 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1078 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:11,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1024 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:01:11,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2024-10-24 03:01:11,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1016. [2024-10-24 03:01:11,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 927 states have (on average 1.6256742179072277) internal successors, (1507), 930 states have internal predecessors, (1507), 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) [2024-10-24 03:01:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1648 transitions. [2024-10-24 03:01:11,462 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1648 transitions. Word has length 161 [2024-10-24 03:01:11,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:11,462 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1648 transitions. [2024-10-24 03:01:11,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:11,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1648 transitions. [2024-10-24 03:01:11,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:11,464 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:11,464 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] [2024-10-24 03:01:11,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:01:11,464 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:11,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:11,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1927034075, now seen corresponding path program 1 times [2024-10-24 03:01:11,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:11,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448929626] [2024-10-24 03:01:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:11,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:11,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:11,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448929626] [2024-10-24 03:01:11,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448929626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:11,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:11,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:11,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171381709] [2024-10-24 03:01:11,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:11,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:11,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:11,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:11,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:11,674 INFO L87 Difference]: Start difference. First operand 1016 states and 1648 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:13,006 INFO L93 Difference]: Finished difference Result 2458 states and 4061 transitions. [2024-10-24 03:01:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:13,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:13,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:13,012 INFO L225 Difference]: With dead ends: 2458 [2024-10-24 03:01:13,012 INFO L226 Difference]: Without dead ends: 1461 [2024-10-24 03:01:13,014 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 [2024-10-24 03:01:13,014 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1228 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:13,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 862 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:01:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2024-10-24 03:01:13,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1016. [2024-10-24 03:01:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 927 states have (on average 1.622437971952535) internal successors, (1504), 930 states have internal predecessors, (1504), 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) [2024-10-24 03:01:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1645 transitions. [2024-10-24 03:01:13,070 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1645 transitions. Word has length 161 [2024-10-24 03:01:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:13,070 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1645 transitions. [2024-10-24 03:01:13,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1645 transitions. [2024-10-24 03:01:13,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:13,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:13,071 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] [2024-10-24 03:01:13,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:01:13,072 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:13,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash -528080473, now seen corresponding path program 1 times [2024-10-24 03:01:13,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:13,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454694808] [2024-10-24 03:01:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:13,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:13,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454694808] [2024-10-24 03:01:13,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454694808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:13,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:13,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:13,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066540993] [2024-10-24 03:01:13,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:13,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:13,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:13,278 INFO L87 Difference]: Start difference. First operand 1016 states and 1645 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:16,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:16,190 INFO L93 Difference]: Finished difference Result 3352 states and 5515 transitions. [2024-10-24 03:01:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:01:16,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:16,198 INFO L225 Difference]: With dead ends: 3352 [2024-10-24 03:01:16,198 INFO L226 Difference]: Without dead ends: 2355 [2024-10-24 03:01:16,201 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 [2024-10-24 03:01:16,201 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1494 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3629 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:16,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1990 Invalid, 3692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3629 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 03:01:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2024-10-24 03:01:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 1671. [2024-10-24 03:01:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1526 states have (on average 1.6153342070773264) internal successors, (2465), 1531 states have internal predecessors, (2465), 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) [2024-10-24 03:01:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2698 transitions. [2024-10-24 03:01:16,295 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2698 transitions. Word has length 161 [2024-10-24 03:01:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:16,295 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2698 transitions. [2024-10-24 03:01:16,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2698 transitions. [2024-10-24 03:01:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:16,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:16,297 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] [2024-10-24 03:01:16,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:01:16,297 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:16,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2145520923, now seen corresponding path program 1 times [2024-10-24 03:01:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696369608] [2024-10-24 03:01:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:16,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696369608] [2024-10-24 03:01:16,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696369608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:16,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:16,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473625651] [2024-10-24 03:01:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:16,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:16,512 INFO L87 Difference]: Start difference. First operand 1671 states and 2698 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:17,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:17,921 INFO L93 Difference]: Finished difference Result 3994 states and 6556 transitions. [2024-10-24 03:01:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:17,929 INFO L225 Difference]: With dead ends: 3994 [2024-10-24 03:01:17,929 INFO L226 Difference]: Without dead ends: 2342 [2024-10-24 03:01:17,933 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 [2024-10-24 03:01:17,933 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1227 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:17,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 862 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:01:17,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-10-24 03:01:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1671. [2024-10-24 03:01:18,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1526 states have (on average 1.6120576671035387) internal successors, (2460), 1531 states have internal predecessors, (2460), 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) [2024-10-24 03:01:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2693 transitions. [2024-10-24 03:01:18,032 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2693 transitions. Word has length 161 [2024-10-24 03:01:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:18,032 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2693 transitions. [2024-10-24 03:01:18,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2693 transitions. [2024-10-24 03:01:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:18,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:18,034 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] [2024-10-24 03:01:18,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:01:18,034 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:18,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:18,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1782054425, now seen corresponding path program 1 times [2024-10-24 03:01:18,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:18,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178337000] [2024-10-24 03:01:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:18,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:18,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:18,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178337000] [2024-10-24 03:01:18,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178337000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:18,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423940750] [2024-10-24 03:01:18,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:18,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:18,234 INFO L87 Difference]: Start difference. First operand 1671 states and 2693 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:21,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:21,041 INFO L93 Difference]: Finished difference Result 5725 states and 9356 transitions. [2024-10-24 03:01:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:01:21,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:21,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:21,053 INFO L225 Difference]: With dead ends: 5725 [2024-10-24 03:01:21,053 INFO L226 Difference]: Without dead ends: 4073 [2024-10-24 03:01:21,057 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 [2024-10-24 03:01:21,057 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1486 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3591 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:21,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1990 Invalid, 3654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3591 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:01:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2024-10-24 03:01:21,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 2981. [2024-10-24 03:01:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2724 states have (on average 1.604992657856094) internal successors, (4372), 2733 states have internal predecessors, (4372), 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) [2024-10-24 03:01:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 4795 transitions. [2024-10-24 03:01:21,226 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 4795 transitions. Word has length 161 [2024-10-24 03:01:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:21,227 INFO L471 AbstractCegarLoop]: Abstraction has 2981 states and 4795 transitions. [2024-10-24 03:01:21,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 4795 transitions. [2024-10-24 03:01:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:21,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:21,229 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] [2024-10-24 03:01:21,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:01:21,229 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:21,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:21,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1493235035, now seen corresponding path program 1 times [2024-10-24 03:01:21,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:21,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765932752] [2024-10-24 03:01:21,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:21,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:21,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:21,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765932752] [2024-10-24 03:01:21,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765932752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:21,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:21,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290323637] [2024-10-24 03:01:21,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:21,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:21,414 INFO L87 Difference]: Start difference. First operand 2981 states and 4795 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:24,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:24,386 INFO L93 Difference]: Finished difference Result 10477 states and 17092 transitions. [2024-10-24 03:01:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 03:01:24,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:24,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:24,408 INFO L225 Difference]: With dead ends: 10477 [2024-10-24 03:01:24,408 INFO L226 Difference]: Without dead ends: 7515 [2024-10-24 03:01:24,420 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 [2024-10-24 03:01:24,421 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1491 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:24,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1990 Invalid, 3636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3573 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 03:01:24,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2024-10-24 03:01:24,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 5606. [2024-10-24 03:01:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5125 states have (on average 1.6003902439024391) internal successors, (8202), 5142 states have internal predecessors, (8202), 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) [2024-10-24 03:01:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 9023 transitions. [2024-10-24 03:01:24,770 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 9023 transitions. Word has length 161 [2024-10-24 03:01:24,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:24,770 INFO L471 AbstractCegarLoop]: Abstraction has 5606 states and 9023 transitions. [2024-10-24 03:01:24,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 9023 transitions. [2024-10-24 03:01:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:24,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:24,778 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] [2024-10-24 03:01:24,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:01:24,778 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:24,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2038107609, now seen corresponding path program 1 times [2024-10-24 03:01:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:24,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803339927] [2024-10-24 03:01:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:24,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:24,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803339927] [2024-10-24 03:01:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803339927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:24,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:24,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:24,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974442404] [2024-10-24 03:01:24,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:24,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:24,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:24,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:24,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:24,951 INFO L87 Difference]: Start difference. First operand 5606 states and 9023 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:26,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:26,568 INFO L93 Difference]: Finished difference Result 13164 states and 21513 transitions. [2024-10-24 03:01:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:26,589 INFO L225 Difference]: With dead ends: 13164 [2024-10-24 03:01:26,590 INFO L226 Difference]: Without dead ends: 7577 [2024-10-24 03:01:26,602 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 [2024-10-24 03:01:26,603 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 1137 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:26,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1023 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:01:26,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2024-10-24 03:01:27,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 5606. [2024-10-24 03:01:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5125 states have (on average 1.5970731707317074) internal successors, (8185), 5142 states have internal predecessors, (8185), 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) [2024-10-24 03:01:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 9006 transitions. [2024-10-24 03:01:27,050 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 9006 transitions. Word has length 161 [2024-10-24 03:01:27,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:27,050 INFO L471 AbstractCegarLoop]: Abstraction has 5606 states and 9006 transitions. [2024-10-24 03:01:27,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:27,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 9006 transitions. [2024-10-24 03:01:27,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:27,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:27,054 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] [2024-10-24 03:01:27,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:01:27,054 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:27,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:27,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1308807721, now seen corresponding path program 1 times [2024-10-24 03:01:27,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:27,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647613133] [2024-10-24 03:01:27,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:27,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647613133] [2024-10-24 03:01:27,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647613133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:27,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:27,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:27,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424554010] [2024-10-24 03:01:27,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:27,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:27,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:27,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:27,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:27,220 INFO L87 Difference]: Start difference. First operand 5606 states and 9006 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:28,915 INFO L93 Difference]: Finished difference Result 13146 states and 21426 transitions. [2024-10-24 03:01:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 03:01:28,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:28,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:28,935 INFO L225 Difference]: With dead ends: 13146 [2024-10-24 03:01:28,935 INFO L226 Difference]: Without dead ends: 7559 [2024-10-24 03:01:28,945 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 [2024-10-24 03:01:28,946 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1077 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:28,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1024 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 03:01:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7559 states. [2024-10-24 03:01:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7559 to 5606. [2024-10-24 03:01:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5125 states have (on average 1.5937560975609757) internal successors, (8168), 5142 states have internal predecessors, (8168), 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) [2024-10-24 03:01:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 8989 transitions. [2024-10-24 03:01:29,311 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 8989 transitions. Word has length 161 [2024-10-24 03:01:29,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:29,311 INFO L471 AbstractCegarLoop]: Abstraction has 5606 states and 8989 transitions. [2024-10-24 03:01:29,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:29,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 8989 transitions. [2024-10-24 03:01:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:29,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:29,315 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] [2024-10-24 03:01:29,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:01:29,315 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:29,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 724036071, now seen corresponding path program 1 times [2024-10-24 03:01:29,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606859194] [2024-10-24 03:01:29,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:29,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:29,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:29,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606859194] [2024-10-24 03:01:29,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606859194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:29,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:29,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:29,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809915462] [2024-10-24 03:01:29,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:29,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:29,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:29,485 INFO L87 Difference]: Start difference. First operand 5606 states and 8989 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:33,355 INFO L93 Difference]: Finished difference Result 22358 states and 36300 transitions. [2024-10-24 03:01:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:01:33,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:33,392 INFO L225 Difference]: With dead ends: 22358 [2024-10-24 03:01:33,393 INFO L226 Difference]: Without dead ends: 16771 [2024-10-24 03:01:33,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:01:33,408 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1906 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:33,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 1983 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3486 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 03:01:33,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16771 states. [2024-10-24 03:01:34,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16771 to 10890. [2024-10-24 03:01:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10890 states, 9977 states have (on average 1.5908589756439813) internal successors, (15872), 10010 states have internal predecessors, (15872), 682 states have call successors, (682), 198 states have call predecessors, (682), 230 states have return successors, (957), 713 states have call predecessors, (957), 682 states have call successors, (957) [2024-10-24 03:01:34,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10890 states to 10890 states and 17511 transitions. [2024-10-24 03:01:34,152 INFO L78 Accepts]: Start accepts. Automaton has 10890 states and 17511 transitions. Word has length 161 [2024-10-24 03:01:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:34,152 INFO L471 AbstractCegarLoop]: Abstraction has 10890 states and 17511 transitions. [2024-10-24 03:01:34,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:34,153 INFO L276 IsEmpty]: Start isEmpty. Operand 10890 states and 17511 transitions. [2024-10-24 03:01:34,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:34,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:34,158 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] [2024-10-24 03:01:34,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:01:34,159 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:34,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:34,159 INFO L85 PathProgramCache]: Analyzing trace with hash 289530473, now seen corresponding path program 1 times [2024-10-24 03:01:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:34,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378472807] [2024-10-24 03:01:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378472807] [2024-10-24 03:01:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378472807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:34,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706352249] [2024-10-24 03:01:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:34,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:34,418 INFO L87 Difference]: Start difference. First operand 10890 states and 17511 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:39,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:39,042 INFO L93 Difference]: Finished difference Result 43352 states and 70600 transitions. [2024-10-24 03:01:39,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:01:39,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:39,117 INFO L225 Difference]: With dead ends: 43352 [2024-10-24 03:01:39,117 INFO L226 Difference]: Without dead ends: 32481 [2024-10-24 03:01:39,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 03:01:39,142 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1869 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 3538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:39,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 1979 Invalid, 3538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 03:01:39,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32481 states. [2024-10-24 03:01:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32481 to 21291. [2024-10-24 03:01:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21291 states, 19530 states have (on average 1.5894521249359959) internal successors, (31042), 19595 states have internal predecessors, (31042), 1306 states have call successors, (1306), 390 states have call predecessors, (1306), 454 states have return successors, (2099), 1369 states have call predecessors, (2099), 1306 states have call successors, (2099) [2024-10-24 03:01:40,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21291 states to 21291 states and 34447 transitions. [2024-10-24 03:01:40,979 INFO L78 Accepts]: Start accepts. Automaton has 21291 states and 34447 transitions. Word has length 161 [2024-10-24 03:01:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:40,979 INFO L471 AbstractCegarLoop]: Abstraction has 21291 states and 34447 transitions. [2024-10-24 03:01:40,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 21291 states and 34447 transitions. [2024-10-24 03:01:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:40,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:40,989 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] [2024-10-24 03:01:40,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:01:40,989 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:40,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:40,989 INFO L85 PathProgramCache]: Analyzing trace with hash -140127833, now seen corresponding path program 1 times [2024-10-24 03:01:40,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:40,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894259926] [2024-10-24 03:01:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:40,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:41,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:41,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894259926] [2024-10-24 03:01:41,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894259926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:41,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:41,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:41,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277715806] [2024-10-24 03:01:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:41,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:41,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:41,159 INFO L87 Difference]: Start difference. First operand 21291 states and 34447 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:48,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:01:48,462 INFO L93 Difference]: Finished difference Result 84407 states and 138238 transitions. [2024-10-24 03:01:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:01:48,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:01:48,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:01:48,730 INFO L225 Difference]: With dead ends: 84407 [2024-10-24 03:01:48,730 INFO L226 Difference]: Without dead ends: 63135 [2024-10-24 03:01:48,775 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 [2024-10-24 03:01:48,776 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1562 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 4091 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:01:48,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 1983 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4091 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 03:01:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63135 states. [2024-10-24 03:01:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63135 to 42252. [2024-10-24 03:01:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42252 states, 38827 states have (on average 1.5891003683004095) internal successors, (61700), 38956 states have internal predecessors, (61700), 2522 states have call successors, (2522), 774 states have call predecessors, (2522), 902 states have return successors, (4837), 2649 states have call predecessors, (4837), 2522 states have call successors, (4837) [2024-10-24 03:01:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42252 states to 42252 states and 69059 transitions. [2024-10-24 03:01:52,868 INFO L78 Accepts]: Start accepts. Automaton has 42252 states and 69059 transitions. Word has length 161 [2024-10-24 03:01:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:01:52,869 INFO L471 AbstractCegarLoop]: Abstraction has 42252 states and 69059 transitions. [2024-10-24 03:01:52,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:01:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42252 states and 69059 transitions. [2024-10-24 03:01:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:01:52,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:01:52,890 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] [2024-10-24 03:01:52,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:01:52,891 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:01:52,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:01:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash -846724439, now seen corresponding path program 1 times [2024-10-24 03:01:52,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:01:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592983675] [2024-10-24 03:01:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:01:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:01:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:01:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:01:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:01:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:01:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:01:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:01:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:01:53,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:01:53,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592983675] [2024-10-24 03:01:53,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592983675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:01:53,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:01:53,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:01:53,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253512172] [2024-10-24 03:01:53,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:01:53,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:01:53,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:01:53,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:01:53,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:01:53,202 INFO L87 Difference]: Start difference. First operand 42252 states and 69059 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:02:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:02:04,020 INFO L93 Difference]: Finished difference Result 165974 states and 274500 transitions. [2024-10-24 03:02:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 03:02:04,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 161 [2024-10-24 03:02:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:02:04,381 INFO L225 Difference]: With dead ends: 165974 [2024-10-24 03:02:04,382 INFO L226 Difference]: Without dead ends: 123741 [2024-10-24 03:02:04,481 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 [2024-10-24 03:02:04,482 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1798 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 3447 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 3513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:02:04,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 1983 Invalid, 3513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3447 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 03:02:04,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123741 states. [2024-10-24 03:02:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123741 to 84173. [2024-10-24 03:02:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84173 states, 77484 states have (on average 1.5892571369573074) internal successors, (123142), 77741 states have internal predecessors, (123142), 4890 states have call successors, (4890), 1542 states have call predecessors, (4890), 1798 states have return successors, (11707), 5145 states have call predecessors, (11707), 4890 states have call successors, (11707) [2024-10-24 03:02:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84173 states to 84173 states and 139739 transitions. [2024-10-24 03:02:11,662 INFO L78 Accepts]: Start accepts. Automaton has 84173 states and 139739 transitions. Word has length 161 [2024-10-24 03:02:11,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:02:11,662 INFO L471 AbstractCegarLoop]: Abstraction has 84173 states and 139739 transitions. [2024-10-24 03:02:11,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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) [2024-10-24 03:02:11,662 INFO L276 IsEmpty]: Start isEmpty. Operand 84173 states and 139739 transitions. [2024-10-24 03:02:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 03:02:11,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:02:11,694 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] [2024-10-24 03:02:11,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:02:11,698 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:02:11,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:02:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash 100313447, now seen corresponding path program 1 times [2024-10-24 03:02:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:02:11,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940998152] [2024-10-24 03:02:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:02:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:02:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 03:02:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 03:02:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-24 03:02:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 03:02:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 03:02:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:02:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 03:02:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:02:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940998152] [2024-10-24 03:02:11,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940998152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:02:11,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:02:11,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 03:02:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508403826] [2024-10-24 03:02:11,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:02:11,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 03:02:11,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:02:11,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 03:02:11,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:02:11,870 INFO L87 Difference]: Start difference. First operand 84173 states and 139739 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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)