./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.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 78201c5527fd684bbb5ce3426a0df19562cff65b8fe2040ac04671f6137326c6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:03:49,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:03:49,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:03:49,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:03:49,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:03:49,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:03:49,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:03:49,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:03:49,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:03:49,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:03:49,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:03:49,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:03:49,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:03:49,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:03:49,186 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:03:49,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:03:49,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:03:49,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:03:49,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:03:49,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:03:49,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:03:49,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:03:49,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:03:49,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:03:49,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:03:49,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:03:49,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:03:49,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:03:49,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:03:49,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:03:49,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:03:49,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:03:49,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78201c5527fd684bbb5ce3426a0df19562cff65b8fe2040ac04671f6137326c6 [2024-11-22 04:03:49,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:03:49,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:03:49,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:03:49,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:03:49,435 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:03:49,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c [2024-11-22 04:03:50,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:03:50,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:03:50,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c [2024-11-22 04:03:50,925 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098ac69e0/f3f671d3eb404e3faa5de7117c6f2a82/FLAG3b890ed9c [2024-11-22 04:03:50,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098ac69e0/f3f671d3eb404e3faa5de7117c6f2a82 [2024-11-22 04:03:50,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:03:50,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:03:50,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:03:50,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:03:50,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:03:50,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:50" (1/1) ... [2024-11-22 04:03:50,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609d58c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:50, skipping insertion in model container [2024-11-22 04:03:50,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:50" (1/1) ... [2024-11-22 04:03:50,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:03:51,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c[913,926] [2024-11-22 04:03:51,201 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c[5977,5990] [2024-11-22 04:03:51,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:03:51,306 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:03:51,315 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c[913,926] [2024-11-22 04:03:51,326 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.10.cil-2.c[5977,5990] [2024-11-22 04:03:51,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:03:51,404 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:03:51,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51 WrapperNode [2024-11-22 04:03:51,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:03:51,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:03:51,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:03:51,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:03:51,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,463 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 963 [2024-11-22 04:03:51,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:03:51,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:03:51,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:03:51,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:03:51,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,500 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 04:03:51,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:03:51,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:03:51,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:03:51,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:03:51,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (1/1) ... [2024-11-22 04:03:51,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:03:51,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:51,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 04:03:51,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 04:03:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:03:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:03:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:03:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-22 04:03:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-22 04:03:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:03:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:03:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:03:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:03:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:03:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:03:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:03:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:03:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:03:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:03:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:03:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:03:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:03:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:03:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:03:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:03:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:03:51,742 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:03:51,744 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:03:52,477 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-22 04:03:52,478 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:03:52,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:03:52,502 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-22 04:03:52,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:52 BoogieIcfgContainer [2024-11-22 04:03:52,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:03:52,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:03:52,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:03:52,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:03:52,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:03:50" (1/3) ... [2024-11-22 04:03:52,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3959a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:52, skipping insertion in model container [2024-11-22 04:03:52,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:51" (2/3) ... [2024-11-22 04:03:52,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3959a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:52, skipping insertion in model container [2024-11-22 04:03:52,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:52" (3/3) ... [2024-11-22 04:03:52,512 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.10.cil-2.c [2024-11-22 04:03:52,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:03:52,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:03:52,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:03:52,615 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;@718b2d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:03:52,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:03:52,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 415 states, 373 states have (on average 1.6219839142091153) internal successors, (605), 378 states have internal predecessors, (605), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 04:03:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 04:03:52,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:52,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:52,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:52,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:52,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1172847617, now seen corresponding path program 1 times [2024-11-22 04:03:52,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:52,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919805794] [2024-11-22 04:03:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:52,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919805794] [2024-11-22 04:03:52,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919805794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:52,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:52,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:52,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249346831] [2024-11-22 04:03:52,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:52,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:52,902 INFO L87 Difference]: Start difference. First operand has 415 states, 373 states have (on average 1.6219839142091153) internal successors, (605), 378 states have internal predecessors, (605), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 04:03:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:52,981 INFO L93 Difference]: Finished difference Result 807 states and 1290 transitions. [2024-11-22 04:03:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-22 04:03:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:52,998 INFO L225 Difference]: With dead ends: 807 [2024-11-22 04:03:52,998 INFO L226 Difference]: Without dead ends: 405 [2024-11-22 04:03:53,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,005 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 94 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1152 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-22 04:03:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-22 04:03:53,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 365 states have (on average 1.5287671232876712) internal successors, (558), 368 states have internal predecessors, (558), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 04:03:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 616 transitions. [2024-11-22 04:03:53,073 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 616 transitions. Word has length 44 [2024-11-22 04:03:53,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,074 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 616 transitions. [2024-11-22 04:03:53,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 04:03:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 616 transitions. [2024-11-22 04:03:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 04:03:53,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:03:53,077 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1750312381, now seen corresponding path program 1 times [2024-11-22 04:03:53,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846662756] [2024-11-22 04:03:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:53,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846662756] [2024-11-22 04:03:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846662756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:53,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:53,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:53,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724346841] [2024-11-22 04:03:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:53,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:53,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,170 INFO L87 Difference]: Start difference. First operand 405 states and 616 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:53,217 INFO L93 Difference]: Finished difference Result 524 states and 783 transitions. [2024-11-22 04:03:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:53,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 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 44 [2024-11-22 04:03:53,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:53,221 INFO L225 Difference]: With dead ends: 524 [2024-11-22 04:03:53,221 INFO L226 Difference]: Without dead ends: 462 [2024-11-22 04:03:53,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,223 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 596 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 708 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-22 04:03:53,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 458. [2024-11-22 04:03:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 412 states have (on average 1.5072815533980584) internal successors, (621), 415 states have internal predecessors, (621), 34 states have call successors, (34), 11 states have call predecessors, (34), 10 states have return successors, (36), 32 states have call predecessors, (36), 32 states have call successors, (36) [2024-11-22 04:03:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 691 transitions. [2024-11-22 04:03:53,259 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 691 transitions. Word has length 44 [2024-11-22 04:03:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,260 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 691 transitions. [2024-11-22 04:03:53,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 691 transitions. [2024-11-22 04:03:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 04:03:53,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:03:53,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash -921574346, now seen corresponding path program 1 times [2024-11-22 04:03:53,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980049163] [2024-11-22 04:03:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:53,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980049163] [2024-11-22 04:03:53,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980049163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:53,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:53,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:53,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170238177] [2024-11-22 04:03:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:53,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:53,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,309 INFO L87 Difference]: Start difference. First operand 458 states and 691 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:53,349 INFO L93 Difference]: Finished difference Result 680 states and 1005 transitions. [2024-11-22 04:03:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:53,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-22 04:03:53,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:53,353 INFO L225 Difference]: With dead ends: 680 [2024-11-22 04:03:53,353 INFO L226 Difference]: Without dead ends: 565 [2024-11-22 04:03:53,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,355 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 591 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-22 04:03:53,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 561. [2024-11-22 04:03:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 503 states have (on average 1.4751491053677932) internal successors, (742), 506 states have internal predecessors, (742), 42 states have call successors, (42), 15 states have call predecessors, (42), 14 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2024-11-22 04:03:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 832 transitions. [2024-11-22 04:03:53,410 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 832 transitions. Word has length 45 [2024-11-22 04:03:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,410 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 832 transitions. [2024-11-22 04:03:53,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 832 transitions. [2024-11-22 04:03:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 04:03:53,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:03:53,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash 362783115, now seen corresponding path program 1 times [2024-11-22 04:03:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132020403] [2024-11-22 04:03:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:53,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132020403] [2024-11-22 04:03:53,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132020403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:53,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:53,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:53,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700854590] [2024-11-22 04:03:53,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:53,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:53,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:53,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:53,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,481 INFO L87 Difference]: Start difference. First operand 561 states and 832 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:53,515 INFO L93 Difference]: Finished difference Result 934 states and 1340 transitions. [2024-11-22 04:03:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-22 04:03:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:53,519 INFO L225 Difference]: With dead ends: 934 [2024-11-22 04:03:53,519 INFO L226 Difference]: Without dead ends: 716 [2024-11-22 04:03:53,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,521 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 66 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1238 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-22 04:03:53,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 659. [2024-11-22 04:03:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 592 states have (on average 1.4527027027027026) internal successors, (860), 597 states have internal predecessors, (860), 46 states have call successors, (46), 20 states have call predecessors, (46), 19 states have return successors, (52), 42 states have call predecessors, (52), 44 states have call successors, (52) [2024-11-22 04:03:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 958 transitions. [2024-11-22 04:03:53,545 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 958 transitions. Word has length 45 [2024-11-22 04:03:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,546 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 958 transitions. [2024-11-22 04:03:53,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 04:03:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 958 transitions. [2024-11-22 04:03:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 04:03:53,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:03:53,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,549 INFO L85 PathProgramCache]: Analyzing trace with hash 465449608, now seen corresponding path program 1 times [2024-11-22 04:03:53,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167286151] [2024-11-22 04:03:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 04:03:53,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167286151] [2024-11-22 04:03:53,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167286151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:53,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:53,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:53,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647676250] [2024-11-22 04:03:53,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:53,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:53,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:53,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:53,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,626 INFO L87 Difference]: Start difference. First operand 659 states and 958 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:03:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:53,673 INFO L93 Difference]: Finished difference Result 1126 states and 1589 transitions. [2024-11-22 04:03:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:53,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-22 04:03:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:53,679 INFO L225 Difference]: With dead ends: 1126 [2024-11-22 04:03:53,679 INFO L226 Difference]: Without dead ends: 810 [2024-11-22 04:03:53,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,681 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 55 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1280 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-22 04:03:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2024-11-22 04:03:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 724 states have (on average 1.4060773480662982) internal successors, (1018), 729 states have internal predecessors, (1018), 58 states have call successors, (58), 27 states have call predecessors, (58), 26 states have return successors, (70), 54 states have call predecessors, (70), 56 states have call successors, (70) [2024-11-22 04:03:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1146 transitions. [2024-11-22 04:03:53,720 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1146 transitions. Word has length 62 [2024-11-22 04:03:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,721 INFO L471 AbstractCegarLoop]: Abstraction has 810 states and 1146 transitions. [2024-11-22 04:03:53,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:03:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1146 transitions. [2024-11-22 04:03:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:03:53,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,723 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:03:53,724 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash 884750419, now seen corresponding path program 1 times [2024-11-22 04:03:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723166151] [2024-11-22 04:03:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 04:03:53,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723166151] [2024-11-22 04:03:53,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723166151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:53,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:53,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:53,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718495519] [2024-11-22 04:03:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:53,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:53,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:53,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,794 INFO L87 Difference]: Start difference. First operand 810 states and 1146 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:03:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:53,850 INFO L93 Difference]: Finished difference Result 1333 states and 1836 transitions. [2024-11-22 04:03:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-22 04:03:53,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:53,855 INFO L225 Difference]: With dead ends: 1333 [2024-11-22 04:03:53,856 INFO L226 Difference]: Without dead ends: 913 [2024-11-22 04:03:53,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:53,858 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 574 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:53,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 699 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-11-22 04:03:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2024-11-22 04:03:53,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 816 states have (on average 1.3786764705882353) internal successors, (1125), 821 states have internal predecessors, (1125), 64 states have call successors, (64), 32 states have call predecessors, (64), 31 states have return successors, (78), 60 states have call predecessors, (78), 62 states have call successors, (78) [2024-11-22 04:03:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1267 transitions. [2024-11-22 04:03:53,906 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1267 transitions. Word has length 67 [2024-11-22 04:03:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:53,906 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1267 transitions. [2024-11-22 04:03:53,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 04:03:53,907 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1267 transitions. [2024-11-22 04:03:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:03:53,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:53,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:53,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:03:53,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:53,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash -304336578, now seen corresponding path program 1 times [2024-11-22 04:03:53,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:53,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62978405] [2024-11-22 04:03:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 04:03:53,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62978405] [2024-11-22 04:03:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62978405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238897331] [2024-11-22 04:03:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:53,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:53,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:03:53,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:03:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:54,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 04:03:54,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:54,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:03:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 04:03:54,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238897331] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:54,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:03:54,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-22 04:03:54,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9751680] [2024-11-22 04:03:54,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:54,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:03:54,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:03:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:03:54,250 INFO L87 Difference]: Start difference. First operand 913 states and 1267 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:03:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:54,427 INFO L93 Difference]: Finished difference Result 969 states and 1335 transitions. [2024-11-22 04:03:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:03:54,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-22 04:03:54,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:54,433 INFO L225 Difference]: With dead ends: 969 [2024-11-22 04:03:54,433 INFO L226 Difference]: Without dead ends: 966 [2024-11-22 04:03:54,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:03:54,434 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 1118 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:54,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 710 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:03:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-22 04:03:54,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 912. [2024-11-22 04:03:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 816 states have (on average 1.3762254901960784) internal successors, (1123), 820 states have internal predecessors, (1123), 63 states have call successors, (63), 32 states have call predecessors, (63), 31 states have return successors, (78), 60 states have call predecessors, (78), 62 states have call successors, (78) [2024-11-22 04:03:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1264 transitions. [2024-11-22 04:03:54,490 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1264 transitions. Word has length 68 [2024-11-22 04:03:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:54,491 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1264 transitions. [2024-11-22 04:03:54,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 04:03:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1264 transitions. [2024-11-22 04:03:54,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 04:03:54,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:54,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:54,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:03:54,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:54,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:54,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash -845756298, now seen corresponding path program 1 times [2024-11-22 04:03:54,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:54,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234123068] [2024-11-22 04:03:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:54,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 04:03:54,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234123068] [2024-11-22 04:03:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234123068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388059116] [2024-11-22 04:03:54,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:54,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:54,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:54,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:03:54,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 04:03:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:54,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:03:54,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:55,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:03:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 04:03:55,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388059116] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:03:55,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:03:55,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-22 04:03:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642934685] [2024-11-22 04:03:55,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:03:55,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 04:03:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 04:03:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:03:55,128 INFO L87 Difference]: Start difference. First operand 912 states and 1264 transitions. Second operand has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-22 04:03:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:55,492 INFO L93 Difference]: Finished difference Result 2256 states and 3048 transitions. [2024-11-22 04:03:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 04:03:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-22 04:03:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:55,499 INFO L225 Difference]: With dead ends: 2256 [2024-11-22 04:03:55,499 INFO L226 Difference]: Without dead ends: 1763 [2024-11-22 04:03:55,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2024-11-22 04:03:55,501 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 1283 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 4206 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:55,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 4206 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:03:55,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-22 04:03:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1269. [2024-11-22 04:03:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1137 states have (on average 1.3368513632365875) internal successors, (1520), 1146 states have internal predecessors, (1520), 83 states have call successors, (83), 46 states have call predecessors, (83), 47 states have return successors, (109), 77 states have call predecessors, (109), 82 states have call successors, (109) [2024-11-22 04:03:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1712 transitions. [2024-11-22 04:03:55,567 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1712 transitions. Word has length 69 [2024-11-22 04:03:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:55,567 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1712 transitions. [2024-11-22 04:03:55,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.0) internal successors, (150), 10 states have internal predecessors, (150), 7 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-22 04:03:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1712 transitions. [2024-11-22 04:03:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 04:03:55,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:55,572 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:55,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 04:03:55,772 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,SelfDestructingSolverStorable7 [2024-11-22 04:03:55,773 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:55,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:55,773 INFO L85 PathProgramCache]: Analyzing trace with hash -962710912, now seen corresponding path program 1 times [2024-11-22 04:03:55,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:55,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035055597] [2024-11-22 04:03:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:55,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 04:03:55,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035055597] [2024-11-22 04:03:55,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035055597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641624448] [2024-11-22 04:03:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:55,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:55,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:55,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:03:55,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 04:03:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:55,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:03:55,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 04:03:55,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:03:55,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641624448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:55,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:03:55,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:03:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930045346] [2024-11-22 04:03:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:55,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:55,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:55,957 INFO L87 Difference]: Start difference. First operand 1269 states and 1712 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 04:03:56,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:56,004 INFO L93 Difference]: Finished difference Result 1915 states and 2553 transitions. [2024-11-22 04:03:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-22 04:03:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:56,009 INFO L225 Difference]: With dead ends: 1915 [2024-11-22 04:03:56,009 INFO L226 Difference]: Without dead ends: 1151 [2024-11-22 04:03:56,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:56,013 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 577 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:56,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 715 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:56,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-22 04:03:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1136. [2024-11-22 04:03:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1018 states have (on average 1.3398821218074657) internal successors, (1364), 1028 states have internal predecessors, (1364), 75 states have call successors, (75), 40 states have call predecessors, (75), 41 states have return successors, (97), 68 states have call predecessors, (97), 74 states have call successors, (97) [2024-11-22 04:03:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1536 transitions. [2024-11-22 04:03:56,076 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1536 transitions. Word has length 88 [2024-11-22 04:03:56,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:56,076 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1536 transitions. [2024-11-22 04:03:56,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 04:03:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1536 transitions. [2024-11-22 04:03:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 04:03:56,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:56,081 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:56,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 04:03:56,281 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 [2024-11-22 04:03:56,282 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:56,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:56,282 INFO L85 PathProgramCache]: Analyzing trace with hash -299622941, now seen corresponding path program 1 times [2024-11-22 04:03:56,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:56,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020121539] [2024-11-22 04:03:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:56,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 04:03:56,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:56,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020121539] [2024-11-22 04:03:56,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020121539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:56,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745535426] [2024-11-22 04:03:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:56,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:56,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:56,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:03:56,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 04:03:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:56,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:03:56,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 04:03:56,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:03:56,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745535426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:56,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:03:56,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:03:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332372789] [2024-11-22 04:03:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:56,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:56,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:56,468 INFO L87 Difference]: Start difference. First operand 1136 states and 1536 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 04:03:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:56,501 INFO L93 Difference]: Finished difference Result 1405 states and 1877 transitions. [2024-11-22 04:03:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:56,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-22 04:03:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:56,504 INFO L225 Difference]: With dead ends: 1405 [2024-11-22 04:03:56,504 INFO L226 Difference]: Without dead ends: 339 [2024-11-22 04:03:56,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:56,506 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 59 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:56,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1250 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:56,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-22 04:03:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-22 04:03:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5487012987012987) internal successors, (477), 309 states have internal predecessors, (477), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 04:03:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 525 transitions. [2024-11-22 04:03:56,516 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 525 transitions. Word has length 103 [2024-11-22 04:03:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:56,516 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 525 transitions. [2024-11-22 04:03:56,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 04:03:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 525 transitions. [2024-11-22 04:03:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:56,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:56,517 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] [2024-11-22 04:03:56,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 04:03:56,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:56,718 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:56,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:56,719 INFO L85 PathProgramCache]: Analyzing trace with hash -115988795, now seen corresponding path program 1 times [2024-11-22 04:03:56,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:56,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84449638] [2024-11-22 04:03:56,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:56,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:56,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:56,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84449638] [2024-11-22 04:03:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84449638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:56,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:56,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797836825] [2024-11-22 04:03:56,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:56,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:56,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:56,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:56,776 INFO L87 Difference]: Start difference. First operand 339 states and 525 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:56,796 INFO L93 Difference]: Finished difference Result 670 states and 1039 transitions. [2024-11-22 04:03:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:56,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 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 156 [2024-11-22 04:03:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:56,799 INFO L225 Difference]: With dead ends: 670 [2024-11-22 04:03:56,799 INFO L226 Difference]: Without dead ends: 339 [2024-11-22 04:03:56,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:56,800 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 517 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:56,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 524 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-22 04:03:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-22 04:03:56,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5454545454545454) internal successors, (476), 309 states have internal predecessors, (476), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 04:03:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 524 transitions. [2024-11-22 04:03:56,816 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 524 transitions. Word has length 156 [2024-11-22 04:03:56,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:56,817 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 524 transitions. [2024-11-22 04:03:56,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:56,817 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 524 transitions. [2024-11-22 04:03:56,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:56,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:56,819 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] [2024-11-22 04:03:56,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:03:56,819 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2047114429, now seen corresponding path program 1 times [2024-11-22 04:03:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:56,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635886717] [2024-11-22 04:03:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:56,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:56,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635886717] [2024-11-22 04:03:56,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635886717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:56,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:56,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:56,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189844665] [2024-11-22 04:03:56,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:56,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:56,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:56,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:56,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:56,881 INFO L87 Difference]: Start difference. First operand 339 states and 524 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:56,899 INFO L93 Difference]: Finished difference Result 662 states and 1022 transitions. [2024-11-22 04:03:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:56,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 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 156 [2024-11-22 04:03:56,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:56,901 INFO L225 Difference]: With dead ends: 662 [2024-11-22 04:03:56,901 INFO L226 Difference]: Without dead ends: 339 [2024-11-22 04:03:56,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:56,903 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 508 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:56,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:56,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-22 04:03:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-22 04:03:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5422077922077921) internal successors, (475), 309 states have internal predecessors, (475), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 04:03:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 523 transitions. [2024-11-22 04:03:56,915 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 523 transitions. Word has length 156 [2024-11-22 04:03:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:56,915 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 523 transitions. [2024-11-22 04:03:56,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 523 transitions. [2024-11-22 04:03:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:56,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:56,916 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] [2024-11-22 04:03:56,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:03:56,917 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:56,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash -259244607, now seen corresponding path program 1 times [2024-11-22 04:03:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:56,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028770843] [2024-11-22 04:03:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:57,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:57,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028770843] [2024-11-22 04:03:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028770843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:57,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:03:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226458722] [2024-11-22 04:03:57,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:57,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:03:57,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:57,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:03:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:03:57,009 INFO L87 Difference]: Start difference. First operand 339 states and 523 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:57,472 INFO L93 Difference]: Finished difference Result 1019 states and 1591 transitions. [2024-11-22 04:03:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:03:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:03:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:57,476 INFO L225 Difference]: With dead ends: 1019 [2024-11-22 04:03:57,476 INFO L226 Difference]: Without dead ends: 699 [2024-11-22 04:03:57,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:57,477 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 991 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:57,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1451 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-22 04:03:57,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 674. [2024-11-22 04:03:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 617 states have (on average 1.5559157212317667) internal successors, (960), 619 states have internal predecessors, (960), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2024-11-22 04:03:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1047 transitions. [2024-11-22 04:03:57,520 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1047 transitions. Word has length 156 [2024-11-22 04:03:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:57,520 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 1047 transitions. [2024-11-22 04:03:57,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1047 transitions. [2024-11-22 04:03:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:57,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:57,522 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] [2024-11-22 04:03:57,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:03:57,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:57,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:57,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1563355717, now seen corresponding path program 1 times [2024-11-22 04:03:57,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360754054] [2024-11-22 04:03:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:57,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:57,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360754054] [2024-11-22 04:03:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360754054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:57,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:57,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:57,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616179360] [2024-11-22 04:03:57,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:57,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:57,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:57,688 INFO L87 Difference]: Start difference. First operand 674 states and 1047 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:58,369 INFO L93 Difference]: Finished difference Result 1754 states and 2760 transitions. [2024-11-22 04:03:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:58,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:03:58,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:58,374 INFO L225 Difference]: With dead ends: 1754 [2024-11-22 04:03:58,374 INFO L226 Difference]: Without dead ends: 1099 [2024-11-22 04:03:58,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:03:58,376 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 997 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:58,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 2809 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:03:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-22 04:03:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 986. [2024-11-22 04:03:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 903 states have (on average 1.5492801771871538) internal successors, (1399), 906 states have internal predecessors, (1399), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (66), 63 states have call predecessors, (66), 62 states have call successors, (66) [2024-11-22 04:03:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1527 transitions. [2024-11-22 04:03:58,432 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1527 transitions. Word has length 156 [2024-11-22 04:03:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:58,432 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1527 transitions. [2024-11-22 04:03:58,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1527 transitions. [2024-11-22 04:03:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:58,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:58,434 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] [2024-11-22 04:03:58,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:03:58,434 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:58,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash -54084733, now seen corresponding path program 1 times [2024-11-22 04:03:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280069798] [2024-11-22 04:03:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:58,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:58,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280069798] [2024-11-22 04:03:58,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280069798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:58,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:58,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936742754] [2024-11-22 04:03:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:58,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:58,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:58,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:58,567 INFO L87 Difference]: Start difference. First operand 986 states and 1527 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:59,215 INFO L93 Difference]: Finished difference Result 2740 states and 4299 transitions. [2024-11-22 04:03:59,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:59,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:03:59,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:59,222 INFO L225 Difference]: With dead ends: 2740 [2024-11-22 04:03:59,222 INFO L226 Difference]: Without dead ends: 1773 [2024-11-22 04:03:59,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:03:59,226 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 989 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:59,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 2779 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:03:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2024-11-22 04:03:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1648. [2024-11-22 04:03:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1511 states have (on average 1.5526141628060888) internal successors, (2346), 1518 states have internal predecessors, (2346), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-22 04:03:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2562 transitions. [2024-11-22 04:03:59,293 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2562 transitions. Word has length 156 [2024-11-22 04:03:59,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:59,294 INFO L471 AbstractCegarLoop]: Abstraction has 1648 states and 2562 transitions. [2024-11-22 04:03:59,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:03:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2562 transitions. [2024-11-22 04:03:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:03:59,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:59,295 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] [2024-11-22 04:03:59,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:03:59,295 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:59,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:59,296 INFO L85 PathProgramCache]: Analyzing trace with hash 234734657, now seen corresponding path program 1 times [2024-11-22 04:03:59,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:59,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283035651] [2024-11-22 04:03:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283035651] [2024-11-22 04:03:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283035651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248568772] [2024-11-22 04:03:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:59,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:59,416 INFO L87 Difference]: Start difference. First operand 1648 states and 2562 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:00,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:00,101 INFO L93 Difference]: Finished difference Result 4870 states and 7696 transitions. [2024-11-22 04:04:00,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:00,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:00,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:00,114 INFO L225 Difference]: With dead ends: 4870 [2024-11-22 04:04:00,114 INFO L226 Difference]: Without dead ends: 3241 [2024-11-22 04:04:00,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:00,119 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 984 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:00,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 2767 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:04:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2024-11-22 04:04:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3083. [2024-11-22 04:04:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2832 states have (on average 1.5685028248587571) internal successors, (4442), 2853 states have internal predecessors, (4442), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-22 04:04:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4858 transitions. [2024-11-22 04:04:00,324 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4858 transitions. Word has length 156 [2024-11-22 04:04:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:00,324 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4858 transitions. [2024-11-22 04:04:00,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4858 transitions. [2024-11-22 04:04:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:00,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:00,327 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] [2024-11-22 04:04:00,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:04:00,328 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:00,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -310137917, now seen corresponding path program 1 times [2024-11-22 04:04:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:00,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442426602] [2024-11-22 04:04:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:00,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442426602] [2024-11-22 04:04:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442426602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931314690] [2024-11-22 04:04:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:00,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:00,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:00,459 INFO L87 Difference]: Start difference. First operand 3083 states and 4858 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:00,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:00,865 INFO L93 Difference]: Finished difference Result 6669 states and 10727 transitions. [2024-11-22 04:04:00,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:00,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:00,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:00,881 INFO L225 Difference]: With dead ends: 6669 [2024-11-22 04:04:00,882 INFO L226 Difference]: Without dead ends: 3605 [2024-11-22 04:04:00,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:00,890 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 701 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:00,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1032 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2024-11-22 04:04:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3083. [2024-11-22 04:04:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2832 states have (on average 1.565324858757062) internal successors, (4433), 2853 states have internal predecessors, (4433), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-22 04:04:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4849 transitions. [2024-11-22 04:04:01,059 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4849 transitions. Word has length 156 [2024-11-22 04:04:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:01,059 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4849 transitions. [2024-11-22 04:04:01,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4849 transitions. [2024-11-22 04:04:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:01,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:01,062 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] [2024-11-22 04:04:01,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:04:01,062 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:01,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash 365022209, now seen corresponding path program 1 times [2024-11-22 04:04:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:01,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392747100] [2024-11-22 04:04:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:01,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:01,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392747100] [2024-11-22 04:04:01,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392747100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:01,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:01,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:01,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606028184] [2024-11-22 04:04:01,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:01,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:01,162 INFO L87 Difference]: Start difference. First operand 3083 states and 4849 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:01,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:01,547 INFO L93 Difference]: Finished difference Result 6640 states and 10651 transitions. [2024-11-22 04:04:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:01,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:01,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:01,561 INFO L225 Difference]: With dead ends: 6640 [2024-11-22 04:04:01,561 INFO L226 Difference]: Without dead ends: 3576 [2024-11-22 04:04:01,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:01,567 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 698 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:01,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1024 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:01,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2024-11-22 04:04:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3083. [2024-11-22 04:04:01,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2832 states have (on average 1.5621468926553672) internal successors, (4424), 2853 states have internal predecessors, (4424), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-22 04:04:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4840 transitions. [2024-11-22 04:04:01,706 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4840 transitions. Word has length 156 [2024-11-22 04:04:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:01,706 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4840 transitions. [2024-11-22 04:04:01,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4840 transitions. [2024-11-22 04:04:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:01,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:01,709 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] [2024-11-22 04:04:01,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:04:01,709 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:01,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:01,709 INFO L85 PathProgramCache]: Analyzing trace with hash -583029757, now seen corresponding path program 1 times [2024-11-22 04:04:01,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:01,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40311715] [2024-11-22 04:04:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:01,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40311715] [2024-11-22 04:04:01,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40311715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:01,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:01,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:01,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387805151] [2024-11-22 04:04:01,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:01,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:01,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:01,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:01,830 INFO L87 Difference]: Start difference. First operand 3083 states and 4840 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:02,285 INFO L93 Difference]: Finished difference Result 6611 states and 10575 transitions. [2024-11-22 04:04:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:02,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:02,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:02,306 INFO L225 Difference]: With dead ends: 6611 [2024-11-22 04:04:02,309 INFO L226 Difference]: Without dead ends: 3547 [2024-11-22 04:04:02,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:02,319 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 695 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:02,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1016 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:04:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2024-11-22 04:04:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3083. [2024-11-22 04:04:02,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2832 states have (on average 1.5589689265536724) internal successors, (4415), 2853 states have internal predecessors, (4415), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-22 04:04:02,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4831 transitions. [2024-11-22 04:04:02,490 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4831 transitions. Word has length 156 [2024-11-22 04:04:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:02,490 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 4831 transitions. [2024-11-22 04:04:02,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:02,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4831 transitions. [2024-11-22 04:04:02,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:02,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:02,494 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] [2024-11-22 04:04:02,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:04:02,495 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:02,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:02,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1167801407, now seen corresponding path program 1 times [2024-11-22 04:04:02,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:02,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67444156] [2024-11-22 04:04:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:02,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:02,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:02,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67444156] [2024-11-22 04:04:02,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67444156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:02,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:02,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013559940] [2024-11-22 04:04:02,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:02,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:02,610 INFO L87 Difference]: Start difference. First operand 3083 states and 4831 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:03,413 INFO L93 Difference]: Finished difference Result 9441 states and 15073 transitions. [2024-11-22 04:04:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:03,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:03,438 INFO L225 Difference]: With dead ends: 9441 [2024-11-22 04:04:03,438 INFO L226 Difference]: Without dead ends: 6377 [2024-11-22 04:04:03,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:03,448 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 955 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:03,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 2698 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:04:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2024-11-22 04:04:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 6187. [2024-11-22 04:04:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6187 states, 5690 states have (on average 1.5804920913884006) internal successors, (8993), 5757 states have internal predecessors, (8993), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-22 04:04:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6187 states to 6187 states and 9905 transitions. [2024-11-22 04:04:03,734 INFO L78 Accepts]: Start accepts. Automaton has 6187 states and 9905 transitions. Word has length 156 [2024-11-22 04:04:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:03,735 INFO L471 AbstractCegarLoop]: Abstraction has 6187 states and 9905 transitions. [2024-11-22 04:04:03,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 6187 states and 9905 transitions. [2024-11-22 04:04:03,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:03,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:03,738 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] [2024-11-22 04:04:03,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:04:03,739 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:03,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1602307005, now seen corresponding path program 1 times [2024-11-22 04:04:03,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686936676] [2024-11-22 04:04:03,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686936676] [2024-11-22 04:04:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686936676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:03,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:03,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416074330] [2024-11-22 04:04:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:03,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:03,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:03,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:03,859 INFO L87 Difference]: Start difference. First operand 6187 states and 9905 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:04,477 INFO L93 Difference]: Finished difference Result 13517 states and 22147 transitions. [2024-11-22 04:04:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:04,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:04,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:04,505 INFO L225 Difference]: With dead ends: 13517 [2024-11-22 04:04:04,506 INFO L226 Difference]: Without dead ends: 7349 [2024-11-22 04:04:04,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:04,526 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 691 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:04,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1002 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:04,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2024-11-22 04:04:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 6187. [2024-11-22 04:04:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6187 states, 5690 states have (on average 1.5775043936731108) internal successors, (8976), 5757 states have internal predecessors, (8976), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-22 04:04:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6187 states to 6187 states and 9888 transitions. [2024-11-22 04:04:04,871 INFO L78 Accepts]: Start accepts. Automaton has 6187 states and 9888 transitions. Word has length 156 [2024-11-22 04:04:04,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:04,872 INFO L471 AbstractCegarLoop]: Abstraction has 6187 states and 9888 transitions. [2024-11-22 04:04:04,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6187 states and 9888 transitions. [2024-11-22 04:04:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:04,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:04,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:04,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:04:04,875 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:04,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2031965311, now seen corresponding path program 1 times [2024-11-22 04:04:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360115872] [2024-11-22 04:04:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:04,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:04,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:04,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:04,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360115872] [2024-11-22 04:04:04,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360115872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:04,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:04,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:04,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769242486] [2024-11-22 04:04:04,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:04,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:04,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:04,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:04,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:04,987 INFO L87 Difference]: Start difference. First operand 6187 states and 9888 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:06,244 INFO L93 Difference]: Finished difference Result 20583 states and 33559 transitions. [2024-11-22 04:04:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:06,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:06,284 INFO L225 Difference]: With dead ends: 20583 [2024-11-22 04:04:06,284 INFO L226 Difference]: Without dead ends: 14415 [2024-11-22 04:04:06,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:06,301 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 1042 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:06,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2640 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 04:04:06,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14415 states. [2024-11-22 04:04:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14415 to 12914. [2024-11-22 04:04:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12914 states, 11887 states have (on average 1.6024228148397408) internal successors, (19048), 12100 states have internal predecessors, (19048), 616 states have call successors, (616), 198 states have call predecessors, (616), 410 states have return successors, (1640), 647 states have call predecessors, (1640), 616 states have call successors, (1640) [2024-11-22 04:04:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12914 states to 12914 states and 21304 transitions. [2024-11-22 04:04:07,246 INFO L78 Accepts]: Start accepts. Automaton has 12914 states and 21304 transitions. Word has length 156 [2024-11-22 04:04:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:07,246 INFO L471 AbstractCegarLoop]: Abstraction has 12914 states and 21304 transitions. [2024-11-22 04:04:07,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 12914 states and 21304 transitions. [2024-11-22 04:04:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:07,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:07,253 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] [2024-11-22 04:04:07,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:04:07,254 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:07,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:07,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1084927425, now seen corresponding path program 1 times [2024-11-22 04:04:07,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:07,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508838698] [2024-11-22 04:04:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:07,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508838698] [2024-11-22 04:04:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508838698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:07,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:07,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:07,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649112948] [2024-11-22 04:04:07,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:07,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:07,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:07,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:07,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:07,380 INFO L87 Difference]: Start difference. First operand 12914 states and 21304 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:08,969 INFO L93 Difference]: Finished difference Result 43566 states and 74029 transitions. [2024-11-22 04:04:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:08,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:09,132 INFO L225 Difference]: With dead ends: 43566 [2024-11-22 04:04:09,134 INFO L226 Difference]: Without dead ends: 30671 [2024-11-22 04:04:09,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:09,159 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 1217 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:09,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2624 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30671 states. [2024-11-22 04:04:10,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30671 to 27861. [2024-11-22 04:04:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27861 states, 25628 states have (on average 1.6311846417980334) internal successors, (41804), 26295 states have internal predecessors, (41804), 1176 states have call successors, (1176), 390 states have call predecessors, (1176), 1056 states have return successors, (5272), 1239 states have call predecessors, (5272), 1176 states have call successors, (5272) [2024-11-22 04:04:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27861 states to 27861 states and 48252 transitions. [2024-11-22 04:04:11,096 INFO L78 Accepts]: Start accepts. Automaton has 27861 states and 48252 transitions. Word has length 156 [2024-11-22 04:04:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:11,096 INFO L471 AbstractCegarLoop]: Abstraction has 27861 states and 48252 transitions. [2024-11-22 04:04:11,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 27861 states and 48252 transitions. [2024-11-22 04:04:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:11,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:11,108 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] [2024-11-22 04:04:11,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:04:11,108 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:11,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash -223093823, now seen corresponding path program 1 times [2024-11-22 04:04:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:11,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277716060] [2024-11-22 04:04:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277716060] [2024-11-22 04:04:11,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277716060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:11,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:11,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:11,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753311468] [2024-11-22 04:04:11,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:11,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:11,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:11,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:11,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:11,227 INFO L87 Difference]: Start difference. First operand 27861 states and 48252 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:14,687 INFO L93 Difference]: Finished difference Result 95069 states and 172035 transitions. [2024-11-22 04:04:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:14,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:14,989 INFO L225 Difference]: With dead ends: 95069 [2024-11-22 04:04:14,989 INFO L226 Difference]: Without dead ends: 67227 [2024-11-22 04:04:15,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:15,094 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 1183 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:15,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2616 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67227 states. [2024-11-22 04:04:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67227 to 62436. [2024-11-22 04:04:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62436 states, 57337 states have (on average 1.661265849277081) internal successors, (95252), 59398 states have internal predecessors, (95252), 2264 states have call successors, (2264), 774 states have call predecessors, (2264), 2834 states have return successors, (18648), 2391 states have call predecessors, (18648), 2264 states have call successors, (18648) [2024-11-22 04:04:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62436 states to 62436 states and 116164 transitions. [2024-11-22 04:04:19,681 INFO L78 Accepts]: Start accepts. Automaton has 62436 states and 116164 transitions. Word has length 156 [2024-11-22 04:04:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:19,681 INFO L471 AbstractCegarLoop]: Abstraction has 62436 states and 116164 transitions. [2024-11-22 04:04:19,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 62436 states and 116164 transitions. [2024-11-22 04:04:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 04:04:19,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:19,697 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] [2024-11-22 04:04:19,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:04:19,698 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:19,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:19,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2021464575, now seen corresponding path program 1 times [2024-11-22 04:04:19,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:19,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852751295] [2024-11-22 04:04:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:19,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:19,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:19,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852751295] [2024-11-22 04:04:19,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852751295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:19,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:19,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:19,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843668842] [2024-11-22 04:04:19,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:19,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:19,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:19,786 INFO L87 Difference]: Start difference. First operand 62436 states and 116164 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:27,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:27,271 INFO L93 Difference]: Finished difference Result 214704 states and 426385 transitions. [2024-11-22 04:04:27,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:27,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2024-11-22 04:04:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:28,178 INFO L225 Difference]: With dead ends: 214704 [2024-11-22 04:04:28,179 INFO L226 Difference]: Without dead ends: 152287 [2024-11-22 04:04:28,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:28,626 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 997 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:28,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2604 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:04:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152287 states.