./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.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.04.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:02:59,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:02:59,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:02:59,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:02:59,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:02:59,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:02:59,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:02:59,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:02:59,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:02:59,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:02:59,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:02:59,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:02:59,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:02:59,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:02:59,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:02:59,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:02:59,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:02:59,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:02:59,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:02:59,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:02:59,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:02:59,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:02:59,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:02:59,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:02:59,431 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:02:59,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:02:59,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:02:59,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:02:59,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:02:59,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:02:59,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:02:59,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:02:59,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:02:59,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:02:59,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:02:59,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:02:59,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:02:59,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:02:59,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:02:59,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:02:59,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:02:59,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:02:59,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82bdcd0599c1cc352b3450b4e917b8a69eeb254589d3b948d4951dae1b33e3d4 [2024-11-22 04:02:59,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:02:59,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:02:59,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:02:59,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:02:59,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:02:59,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-22 04:03:01,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:03:01,336 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:03:01,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-22 04:03:01,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0603037/235d6da176ab40469701245fdc3be34d/FLAG1531da2f0 [2024-11-22 04:03:01,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0603037/235d6da176ab40469701245fdc3be34d [2024-11-22 04:03:01,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:03:01,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:03:01,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:03:01,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:03:01,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:03:01,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d26cc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01, skipping insertion in model container [2024-11-22 04:03:01,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:03:01,567 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.04.cil-1.c[913,926] [2024-11-22 04:03:01,613 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.04.cil-1.c[5977,5990] [2024-11-22 04:03:01,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:03:01,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:03:01,694 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.04.cil-1.c[913,926] [2024-11-22 04:03:01,705 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.04.cil-1.c[5977,5990] [2024-11-22 04:03:01,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:03:01,748 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:03:01,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01 WrapperNode [2024-11-22 04:03:01,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:03:01,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:03:01,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:03:01,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:03:01,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,821 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 603 [2024-11-22 04:03:01,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:03:01,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:03:01,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:03:01,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:03:01,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,842 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,869 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 04:03:01,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:03:01,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:03:01,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:03:01,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:03:01,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (1/1) ... [2024-11-22 04:03:01,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:03:01,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:02,016 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 04:03:02,029 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 04:03:02,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:03:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:03:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:03:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-22 04:03:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-22 04:03:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:03:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:03:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:03:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:03:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:03:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:03:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:03:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:03:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:03:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:03:02,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:03:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:03:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:03:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:03:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:03:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:03:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:03:02,147 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:03:02,149 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:03:02,671 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-22 04:03:02,671 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:03:02,698 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:03:02,701 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-22 04:03:02,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:02 BoogieIcfgContainer [2024-11-22 04:03:02,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:03:02,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:03:02,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:03:02,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:03:02,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:03:01" (1/3) ... [2024-11-22 04:03:02,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296b2758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:02, skipping insertion in model container [2024-11-22 04:03:02,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:01" (2/3) ... [2024-11-22 04:03:02,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296b2758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:02, skipping insertion in model container [2024-11-22 04:03:02,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:02" (3/3) ... [2024-11-22 04:03:02,714 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.04.cil-1.c [2024-11-22 04:03:02,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:03:02,730 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:03:02,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:03:02,815 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;@337ea947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:03:02,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:03:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 228 states have internal predecessors, (353), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 04:03:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 04:03:02,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:02,836 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 04:03:02,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:02,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:02,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1763153476, now seen corresponding path program 1 times [2024-11-22 04:03:02,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:02,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26051812] [2024-11-22 04:03:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:03,085 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 04:03:03,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:03,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26051812] [2024-11-22 04:03:03,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26051812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:03,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:03,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:03,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309724884] [2024-11-22 04:03:03,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:03,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:03,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:03,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:03,132 INFO L87 Difference]: Start difference. First operand has 259 states, 223 states have (on average 1.5829596412556053) internal successors, (353), 228 states have internal predecessors, (353), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) 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 04:03:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:03,309 INFO L93 Difference]: Finished difference Result 560 states and 870 transitions. [2024-11-22 04:03:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:03,313 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 04:03:03,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:03,337 INFO L225 Difference]: With dead ends: 560 [2024-11-22 04:03:03,341 INFO L226 Difference]: Without dead ends: 308 [2024-11-22 04:03:03,346 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 04:03:03,353 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 352 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:03,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 473 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:03:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-22 04:03:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 304. [2024-11-22 04:03:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 264 states have (on average 1.4583333333333333) internal successors, (385), 267 states have internal predecessors, (385), 28 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (30), 26 states have call predecessors, (30), 26 states have call successors, (30) [2024-11-22 04:03:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 443 transitions. [2024-11-22 04:03:03,460 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 443 transitions. Word has length 44 [2024-11-22 04:03:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:03,461 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 443 transitions. [2024-11-22 04:03:03,462 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 04:03:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 443 transitions. [2024-11-22 04:03:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 04:03:03,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:03,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:03:03,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:03:03,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:03,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1514701925, now seen corresponding path program 1 times [2024-11-22 04:03:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:03,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099354142] [2024-11-22 04:03:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:03,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:03,591 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 04:03:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:03,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099354142] [2024-11-22 04:03:03,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099354142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:03,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:03,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035760332] [2024-11-22 04:03:03,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:03,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:03,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:03,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:03,596 INFO L87 Difference]: Start difference. First operand 304 states and 443 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 04:03:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:03,666 INFO L93 Difference]: Finished difference Result 512 states and 731 transitions. [2024-11-22 04:03:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:03,671 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 04:03:03,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:03,684 INFO L225 Difference]: With dead ends: 512 [2024-11-22 04:03:03,684 INFO L226 Difference]: Without dead ends: 397 [2024-11-22 04:03:03,692 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 04:03:03,693 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 67 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 731 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 04:03:03,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 731 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:03,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-22 04:03:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 371. [2024-11-22 04:03:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 325 states have (on average 1.4430769230769231) internal successors, (469), 328 states have internal predecessors, (469), 31 states have call successors, (31), 14 states have call predecessors, (31), 13 states have return successors, (34), 29 states have call predecessors, (34), 29 states have call successors, (34) [2024-11-22 04:03:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 534 transitions. [2024-11-22 04:03:03,784 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 534 transitions. Word has length 45 [2024-11-22 04:03:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:03,784 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 534 transitions. [2024-11-22 04:03:03,784 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 04:03:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 534 transitions. [2024-11-22 04:03:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 04:03:03,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:03,793 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 04:03:03,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:03:03,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:03,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash 230344464, now seen corresponding path program 1 times [2024-11-22 04:03:03,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:03,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996720042] [2024-11-22 04:03:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:03,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:03,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:03,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996720042] [2024-11-22 04:03:03,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996720042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:03,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:03,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:03,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274946940] [2024-11-22 04:03:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:03,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:03,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:03,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:03,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:03,966 INFO L87 Difference]: Start difference. First operand 371 states and 534 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 04:03:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:04,095 INFO L93 Difference]: Finished difference Result 724 states and 1022 transitions. [2024-11-22 04:03:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:04,096 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 04:03:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:04,105 INFO L225 Difference]: With dead ends: 724 [2024-11-22 04:03:04,109 INFO L226 Difference]: Without dead ends: 542 [2024-11-22 04:03:04,110 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 04:03:04,111 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 340 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 452 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 04:03:04,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 452 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:04,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-22 04:03:04,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 528. [2024-11-22 04:03:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 464 states have (on average 1.4030172413793103) internal successors, (651), 469 states have internal predecessors, (651), 42 states have call successors, (42), 21 states have call predecessors, (42), 20 states have return successors, (50), 38 states have call predecessors, (50), 40 states have call successors, (50) [2024-11-22 04:03:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 743 transitions. [2024-11-22 04:03:04,192 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 743 transitions. Word has length 45 [2024-11-22 04:03:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:04,193 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 743 transitions. [2024-11-22 04:03:04,194 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 04:03:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 743 transitions. [2024-11-22 04:03:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 04:03:04,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:04,200 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 04:03:04,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:03:04,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:04,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:04,207 INFO L85 PathProgramCache]: Analyzing trace with hash 781815284, now seen corresponding path program 1 times [2024-11-22 04:03:04,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:04,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104515723] [2024-11-22 04:03:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:04,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:04,355 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 04:03:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:04,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104515723] [2024-11-22 04:03:04,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104515723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:04,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:04,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259731770] [2024-11-22 04:03:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:04,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:04,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:04,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:04,362 INFO L87 Difference]: Start difference. First operand 528 states and 743 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 04:03:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:04,418 INFO L93 Difference]: Finished difference Result 1040 states and 1440 transitions. [2024-11-22 04:03:04,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:04,419 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 04:03:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:04,424 INFO L225 Difference]: With dead ends: 1040 [2024-11-22 04:03:04,425 INFO L226 Difference]: Without dead ends: 701 [2024-11-22 04:03:04,428 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 04:03:04,432 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 55 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 778 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 04:03:04,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 778 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-22 04:03:04,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2024-11-22 04:03:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 615 states have (on average 1.3528455284552845) internal successors, (832), 620 states have internal predecessors, (832), 56 states have call successors, (56), 29 states have call predecessors, (56), 28 states have return successors, (72), 52 states have call predecessors, (72), 54 states have call successors, (72) [2024-11-22 04:03:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 960 transitions. [2024-11-22 04:03:04,481 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 960 transitions. Word has length 62 [2024-11-22 04:03:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:04,483 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 960 transitions. [2024-11-22 04:03:04,483 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 04:03:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 960 transitions. [2024-11-22 04:03:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:03:04,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:04,487 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 04:03:04,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:03:04,488 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:04,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash 140663655, now seen corresponding path program 1 times [2024-11-22 04:03:04,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:04,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699921068] [2024-11-22 04:03:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:04,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:04,564 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 04:03:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:04,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699921068] [2024-11-22 04:03:04,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699921068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:04,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:04,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111514490] [2024-11-22 04:03:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:04,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:04,569 INFO L87 Difference]: Start difference. First operand 701 states and 960 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 04:03:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:04,622 INFO L93 Difference]: Finished difference Result 1248 states and 1681 transitions. [2024-11-22 04:03:04,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:04,623 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 04:03:04,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:04,629 INFO L225 Difference]: With dead ends: 1248 [2024-11-22 04:03:04,630 INFO L226 Difference]: Without dead ends: 828 [2024-11-22 04:03:04,632 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 04:03:04,634 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 327 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 448 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 04:03:04,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 448 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:04,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-22 04:03:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2024-11-22 04:03:04,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 728 states have (on average 1.3241758241758241) internal successors, (964), 733 states have internal predecessors, (964), 64 states have call successors, (64), 35 states have call predecessors, (64), 34 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-22 04:03:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1112 transitions. [2024-11-22 04:03:04,682 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1112 transitions. Word has length 67 [2024-11-22 04:03:04,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:04,682 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1112 transitions. [2024-11-22 04:03:04,683 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 04:03:04,683 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1112 transitions. [2024-11-22 04:03:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:03:04,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:04,686 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 04:03:04,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:03:04,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:04,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1366170724, now seen corresponding path program 1 times [2024-11-22 04:03:04,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:04,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361654934] [2024-11-22 04:03:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:04,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:04,847 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 04:03:04,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361654934] [2024-11-22 04:03:04,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361654934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:04,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099605708] [2024-11-22 04:03:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:04,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:04,856 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 04:03:04,858 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 04:03:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:04,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 04:03:04,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:05,090 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 04:03:05,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:03:05,147 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 04:03:05,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099605708] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:05,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:03:05,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2024-11-22 04:03:05,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030414156] [2024-11-22 04:03:05,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:05,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:03:05,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:03:05,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:03:05,150 INFO L87 Difference]: Start difference. First operand 828 states and 1112 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 04:03:05,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:05,302 INFO L93 Difference]: Finished difference Result 884 states and 1180 transitions. [2024-11-22 04:03:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:03:05,303 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 04:03:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:05,310 INFO L225 Difference]: With dead ends: 884 [2024-11-22 04:03:05,310 INFO L226 Difference]: Without dead ends: 881 [2024-11-22 04:03:05,311 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 04:03:05,315 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 645 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:05,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 456 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:03:05,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-22 04:03:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 827. [2024-11-22 04:03:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 728 states have (on average 1.3214285714285714) internal successors, (962), 732 states have internal predecessors, (962), 63 states have call successors, (63), 35 states have call predecessors, (63), 34 states have return successors, (84), 60 states have call predecessors, (84), 62 states have call successors, (84) [2024-11-22 04:03:05,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1109 transitions. [2024-11-22 04:03:05,384 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1109 transitions. Word has length 68 [2024-11-22 04:03:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:05,384 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1109 transitions. [2024-11-22 04:03:05,385 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 04:03:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1109 transitions. [2024-11-22 04:03:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 04:03:05,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:05,387 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 04:03:05,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 04:03:05,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 04:03:05,589 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:05,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash -599191478, now seen corresponding path program 1 times [2024-11-22 04:03:05,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:05,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140911520] [2024-11-22 04:03:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:05,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:05,669 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 04:03:05,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140911520] [2024-11-22 04:03:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140911520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938290033] [2024-11-22 04:03:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:05,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:05,673 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 04:03:05,676 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 04:03:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:05,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:03:05,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:06,032 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 04:03:06,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:03:06,140 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 04:03:06,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938290033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:03:06,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:03:06,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2024-11-22 04:03:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274995990] [2024-11-22 04:03:06,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:03:06,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 04:03:06,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 04:03:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:03:06,143 INFO L87 Difference]: Start difference. First operand 827 states and 1109 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 04:03:06,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:06,563 INFO L93 Difference]: Finished difference Result 2171 states and 2893 transitions. [2024-11-22 04:03:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 04:03:06,564 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 04:03:06,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:06,572 INFO L225 Difference]: With dead ends: 2171 [2024-11-22 04:03:06,572 INFO L226 Difference]: Without dead ends: 1678 [2024-11-22 04:03:06,574 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 04:03:06,575 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 759 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:06,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 3110 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:03:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-22 04:03:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1184. [2024-11-22 04:03:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1049 states have (on average 1.2955195424213537) internal successors, (1359), 1058 states have internal predecessors, (1359), 83 states have call successors, (83), 49 states have call predecessors, (83), 50 states have return successors, (115), 77 states have call predecessors, (115), 82 states have call successors, (115) [2024-11-22 04:03:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1557 transitions. [2024-11-22 04:03:06,671 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1557 transitions. Word has length 69 [2024-11-22 04:03:06,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:06,672 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1557 transitions. [2024-11-22 04:03:06,672 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 04:03:06,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1557 transitions. [2024-11-22 04:03:06,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 04:03:06,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:06,683 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 04:03:06,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 04:03:06,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-22 04:03:06,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 755028000, now seen corresponding path program 1 times [2024-11-22 04:03:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906855865] [2024-11-22 04:03:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:06,970 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 04:03:06,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906855865] [2024-11-22 04:03:06,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906855865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768663184] [2024-11-22 04:03:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:06,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:06,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:06,974 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 04:03:06,975 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 04:03:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:07,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:03:07,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:07,102 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 04:03:07,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:03:07,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768663184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:07,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:03:07,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:03:07,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646875867] [2024-11-22 04:03:07,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:07,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:07,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:07,104 INFO L87 Difference]: Start difference. First operand 1184 states and 1557 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 04:03:07,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:07,190 INFO L93 Difference]: Finished difference Result 1830 states and 2398 transitions. [2024-11-22 04:03:07,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:07,190 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 04:03:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:07,195 INFO L225 Difference]: With dead ends: 1830 [2024-11-22 04:03:07,196 INFO L226 Difference]: Without dead ends: 1066 [2024-11-22 04:03:07,197 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 04:03:07,198 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 325 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 470 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 04:03:07,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 470 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-11-22 04:03:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1051. [2024-11-22 04:03:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 930 states have (on average 1.293548387096774) internal successors, (1203), 940 states have internal predecessors, (1203), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (103), 68 states have call predecessors, (103), 74 states have call successors, (103) [2024-11-22 04:03:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1381 transitions. [2024-11-22 04:03:07,249 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1381 transitions. Word has length 88 [2024-11-22 04:03:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:07,250 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1381 transitions. [2024-11-22 04:03:07,250 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 04:03:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1381 transitions. [2024-11-22 04:03:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:07,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:07,253 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] [2024-11-22 04:03:07,262 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 04:03:07,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:07,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:07,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:07,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1527050226, now seen corresponding path program 1 times [2024-11-22 04:03:07,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:07,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398805885] [2024-11-22 04:03:07,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:07,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:07,515 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 04:03:07,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398805885] [2024-11-22 04:03:07,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398805885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:07,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:07,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:03:07,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663237279] [2024-11-22 04:03:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:07,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:07,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:07,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:03:07,518 INFO L87 Difference]: Start difference. First operand 1051 states and 1381 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 04:03:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:07,560 INFO L93 Difference]: Finished difference Result 1223 states and 1637 transitions. [2024-11-22 04:03:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:07,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:07,566 INFO L225 Difference]: With dead ends: 1223 [2024-11-22 04:03:07,566 INFO L226 Difference]: Without dead ends: 1051 [2024-11-22 04:03:07,568 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 04:03:07,570 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 262 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 452 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 04:03:07,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-22 04:03:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1051. [2024-11-22 04:03:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 930 states have (on average 1.29247311827957) internal successors, (1202), 940 states have internal predecessors, (1202), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (103), 68 states have call predecessors, (103), 74 states have call successors, (103) [2024-11-22 04:03:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1380 transitions. [2024-11-22 04:03:07,624 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1380 transitions. Word has length 90 [2024-11-22 04:03:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:07,625 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1380 transitions. [2024-11-22 04:03:07,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 04:03:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1380 transitions. [2024-11-22 04:03:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:07,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:07,629 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] [2024-11-22 04:03:07,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:03:07,629 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:07,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 688016564, now seen corresponding path program 1 times [2024-11-22 04:03:07,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:07,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907674326] [2024-11-22 04:03:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:07,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:07,730 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 04:03:07,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:07,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907674326] [2024-11-22 04:03:07,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907674326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:07,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:07,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:03:07,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3428136] [2024-11-22 04:03:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:07,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:03:07,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:07,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:03:07,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:03:07,733 INFO L87 Difference]: Start difference. First operand 1051 states and 1380 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 04:03:08,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:08,191 INFO L93 Difference]: Finished difference Result 1407 states and 1920 transitions. [2024-11-22 04:03:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:03:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:08,198 INFO L225 Difference]: With dead ends: 1407 [2024-11-22 04:03:08,198 INFO L226 Difference]: Without dead ends: 1237 [2024-11-22 04:03:08,199 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 04:03:08,199 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 591 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:08,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 895 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:08,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-11-22 04:03:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1224. [2024-11-22 04:03:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1083 states have (on average 1.3250230840258541) internal successors, (1435), 1094 states have internal predecessors, (1435), 88 states have call successors, (88), 49 states have call predecessors, (88), 51 states have return successors, (117), 81 states have call predecessors, (117), 87 states have call successors, (117) [2024-11-22 04:03:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1640 transitions. [2024-11-22 04:03:08,259 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1640 transitions. Word has length 90 [2024-11-22 04:03:08,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:08,259 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1640 transitions. [2024-11-22 04:03:08,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 04:03:08,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1640 transitions. [2024-11-22 04:03:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:08,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:08,262 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] [2024-11-22 04:03:08,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:03:08,263 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:08,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash -486642888, now seen corresponding path program 1 times [2024-11-22 04:03:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598704534] [2024-11-22 04:03:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:08,431 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 04:03:08,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:08,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598704534] [2024-11-22 04:03:08,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598704534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:08,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:08,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:08,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193132933] [2024-11-22 04:03:08,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:08,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:08,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:08,433 INFO L87 Difference]: Start difference. First operand 1224 states and 1640 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:09,151 INFO L93 Difference]: Finished difference Result 1782 states and 2489 transitions. [2024-11-22 04:03:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:09,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:09,159 INFO L225 Difference]: With dead ends: 1782 [2024-11-22 04:03:09,159 INFO L226 Difference]: Without dead ends: 1439 [2024-11-22 04:03:09,161 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 04:03:09,162 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 585 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:09,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1598 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:03:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-22 04:03:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1386. [2024-11-22 04:03:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1225 states have (on average 1.343673469387755) internal successors, (1646), 1237 states have internal predecessors, (1646), 101 states have call successors, (101), 55 states have call predecessors, (101), 58 states have return successors, (133), 95 states have call predecessors, (133), 100 states have call successors, (133) [2024-11-22 04:03:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1880 transitions. [2024-11-22 04:03:09,266 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1880 transitions. Word has length 90 [2024-11-22 04:03:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:09,266 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 1880 transitions. [2024-11-22 04:03:09,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:09,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1880 transitions. [2024-11-22 04:03:09,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:09,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:09,270 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] [2024-11-22 04:03:09,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:03:09,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:09,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash 400579958, now seen corresponding path program 1 times [2024-11-22 04:03:09,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141636420] [2024-11-22 04:03:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:09,402 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 04:03:09,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:09,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141636420] [2024-11-22 04:03:09,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141636420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:09,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:09,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:09,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547934168] [2024-11-22 04:03:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:09,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:09,405 INFO L87 Difference]: Start difference. First operand 1386 states and 1880 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:09,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:09,999 INFO L93 Difference]: Finished difference Result 2282 states and 3236 transitions. [2024-11-22 04:03:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:09,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:09,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:10,009 INFO L225 Difference]: With dead ends: 2282 [2024-11-22 04:03:10,009 INFO L226 Difference]: Without dead ends: 1777 [2024-11-22 04:03:10,012 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 04:03:10,012 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 577 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:10,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1568 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:03:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2024-11-22 04:03:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1724. [2024-11-22 04:03:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1521 states have (on average 1.3734385272846812) internal successors, (2089), 1537 states have internal predecessors, (2089), 127 states have call successors, (127), 67 states have call predecessors, (127), 74 states have return successors, (171), 123 states have call predecessors, (171), 126 states have call successors, (171) [2024-11-22 04:03:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2387 transitions. [2024-11-22 04:03:10,164 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2387 transitions. Word has length 90 [2024-11-22 04:03:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:10,164 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2387 transitions. [2024-11-22 04:03:10,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2387 transitions. [2024-11-22 04:03:10,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:10,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:10,168 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] [2024-11-22 04:03:10,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:03:10,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:10,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:10,169 INFO L85 PathProgramCache]: Analyzing trace with hash 477480756, now seen corresponding path program 1 times [2024-11-22 04:03:10,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:10,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591921717] [2024-11-22 04:03:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:10,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:10,279 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 04:03:10,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:10,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591921717] [2024-11-22 04:03:10,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591921717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:10,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:10,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:10,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504315359] [2024-11-22 04:03:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:10,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:10,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:10,281 INFO L87 Difference]: Start difference. First operand 1724 states and 2387 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:10,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:10,767 INFO L93 Difference]: Finished difference Result 3344 states and 4857 transitions. [2024-11-22 04:03:10,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:10,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:10,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:10,777 INFO L225 Difference]: With dead ends: 3344 [2024-11-22 04:03:10,777 INFO L226 Difference]: Without dead ends: 2501 [2024-11-22 04:03:10,780 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 04:03:10,781 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 572 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:10,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1556 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2024-11-22 04:03:10,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2439. [2024-11-22 04:03:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2146 states have (on average 1.413327120223672) internal successors, (3033), 2176 states have internal predecessors, (3033), 179 states have call successors, (179), 91 states have call predecessors, (179), 112 states have return successors, (271), 179 states have call predecessors, (271), 178 states have call successors, (271) [2024-11-22 04:03:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3483 transitions. [2024-11-22 04:03:10,942 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3483 transitions. Word has length 90 [2024-11-22 04:03:10,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:10,942 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3483 transitions. [2024-11-22 04:03:10,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3483 transitions. [2024-11-22 04:03:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:10,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:10,945 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] [2024-11-22 04:03:10,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:03:10,945 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:10,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:10,946 INFO L85 PathProgramCache]: Analyzing trace with hash -489869898, now seen corresponding path program 1 times [2024-11-22 04:03:10,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:10,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777555278] [2024-11-22 04:03:10,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:10,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:11,025 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 04:03:11,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777555278] [2024-11-22 04:03:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777555278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:11,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:03:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580685688] [2024-11-22 04:03:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:11,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:03:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:11,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:03:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:03:11,027 INFO L87 Difference]: Start difference. First operand 2439 states and 3483 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:11,549 INFO L93 Difference]: Finished difference Result 4171 states and 6184 transitions. [2024-11-22 04:03:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:03:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:11,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:11,582 INFO L225 Difference]: With dead ends: 4171 [2024-11-22 04:03:11,586 INFO L226 Difference]: Without dead ends: 2613 [2024-11-22 04:03:11,595 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 04:03:11,596 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 455 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:11,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 660 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:03:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2024-11-22 04:03:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2439. [2024-11-22 04:03:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2146 states have (on average 1.4091332712022366) internal successors, (3024), 2176 states have internal predecessors, (3024), 179 states have call successors, (179), 91 states have call predecessors, (179), 112 states have return successors, (271), 179 states have call predecessors, (271), 178 states have call successors, (271) [2024-11-22 04:03:11,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3474 transitions. [2024-11-22 04:03:11,898 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3474 transitions. Word has length 90 [2024-11-22 04:03:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:11,898 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3474 transitions. [2024-11-22 04:03:11,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:11,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3474 transitions. [2024-11-22 04:03:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:11,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:11,903 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] [2024-11-22 04:03:11,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:03:11,903 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:11,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1418587892, now seen corresponding path program 1 times [2024-11-22 04:03:11,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:11,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342521168] [2024-11-22 04:03:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:12,002 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 04:03:12,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:12,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342521168] [2024-11-22 04:03:12,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342521168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:12,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:12,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955669260] [2024-11-22 04:03:12,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:12,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:12,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:12,005 INFO L87 Difference]: Start difference. First operand 2439 states and 3474 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:12,694 INFO L93 Difference]: Finished difference Result 5767 states and 8617 transitions. [2024-11-22 04:03:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:12,713 INFO L225 Difference]: With dead ends: 5767 [2024-11-22 04:03:12,713 INFO L226 Difference]: Without dead ends: 4209 [2024-11-22 04:03:12,719 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 04:03:12,720 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 662 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:12,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1508 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2024-11-22 04:03:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 3877. [2024-11-22 04:03:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 3394 states have (on average 1.4466705951679435) internal successors, (4910), 3470 states have internal predecessors, (4910), 275 states have call successors, (275), 139 states have call predecessors, (275), 206 states have return successors, (559), 283 states have call predecessors, (559), 274 states have call successors, (559) [2024-11-22 04:03:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 5744 transitions. [2024-11-22 04:03:12,946 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 5744 transitions. Word has length 90 [2024-11-22 04:03:12,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:12,946 INFO L471 AbstractCegarLoop]: Abstraction has 3877 states and 5744 transitions. [2024-11-22 04:03:12,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 5744 transitions. [2024-11-22 04:03:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:12,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:12,950 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] [2024-11-22 04:03:12,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:03:12,950 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:12,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash 925961718, now seen corresponding path program 1 times [2024-11-22 04:03:12,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:12,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121246350] [2024-11-22 04:03:12,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:12,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:13,034 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 04:03:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121246350] [2024-11-22 04:03:13,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121246350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:13,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:13,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307801974] [2024-11-22 04:03:13,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:13,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:13,036 INFO L87 Difference]: Start difference. First operand 3877 states and 5744 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:13,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:13,824 INFO L93 Difference]: Finished difference Result 10395 states and 16213 transitions. [2024-11-22 04:03:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:13,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:13,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:13,874 INFO L225 Difference]: With dead ends: 10395 [2024-11-22 04:03:13,874 INFO L226 Difference]: Without dead ends: 7399 [2024-11-22 04:03:13,892 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 04:03:13,893 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 599 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:13,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1121 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-11-22 04:03:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 6958. [2024-11-22 04:03:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6958 states, 6049 states have (on average 1.477599603240205) internal successors, (8938), 6271 states have internal predecessors, (8938), 459 states have call successors, (459), 235 states have call predecessors, (459), 448 states have return successors, (1511), 483 states have call predecessors, (1511), 458 states have call successors, (1511) [2024-11-22 04:03:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 10908 transitions. [2024-11-22 04:03:14,534 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 10908 transitions. Word has length 90 [2024-11-22 04:03:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:14,535 INFO L471 AbstractCegarLoop]: Abstraction has 6958 states and 10908 transitions. [2024-11-22 04:03:14,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 10908 transitions. [2024-11-22 04:03:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:14,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:14,542 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] [2024-11-22 04:03:14,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:03:14,542 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:14,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1879901876, now seen corresponding path program 1 times [2024-11-22 04:03:14,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:14,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187264625] [2024-11-22 04:03:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:14,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:14,653 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 04:03:14,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187264625] [2024-11-22 04:03:14,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187264625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:14,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:14,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:14,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259232062] [2024-11-22 04:03:14,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:14,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:14,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:14,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:14,657 INFO L87 Difference]: Start difference. First operand 6958 states and 10908 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:15,913 INFO L93 Difference]: Finished difference Result 20152 states and 33727 transitions. [2024-11-22 04:03:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:15,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:15,990 INFO L225 Difference]: With dead ends: 20152 [2024-11-22 04:03:15,990 INFO L226 Difference]: Without dead ends: 14075 [2024-11-22 04:03:16,010 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 04:03:16,010 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 593 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:16,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1488 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:03:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14075 states. [2024-11-22 04:03:17,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14075 to 13477. [2024-11-22 04:03:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13477 states, 11570 states have (on average 1.4926534140017287) internal successors, (17270), 12246 states have internal predecessors, (17270), 811 states have call successors, (811), 427 states have call predecessors, (811), 1094 states have return successors, (4935), 867 states have call predecessors, (4935), 810 states have call successors, (4935) [2024-11-22 04:03:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 23016 transitions. [2024-11-22 04:03:17,536 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 23016 transitions. Word has length 90 [2024-11-22 04:03:17,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:17,537 INFO L471 AbstractCegarLoop]: Abstraction has 13477 states and 23016 transitions. [2024-11-22 04:03:17,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 23016 transitions. [2024-11-22 04:03:17,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:17,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:17,553 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] [2024-11-22 04:03:17,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:03:17,554 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:17,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash 663748150, now seen corresponding path program 1 times [2024-11-22 04:03:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:17,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236027155] [2024-11-22 04:03:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:17,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:03:17,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:17,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236027155] [2024-11-22 04:03:17,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236027155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:17,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:17,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:03:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894269151] [2024-11-22 04:03:17,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:17,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:03:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:03:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:17,681 INFO L87 Difference]: Start difference. First operand 13477 states and 23016 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:20,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:20,196 INFO L93 Difference]: Finished difference Result 40403 states and 76125 transitions. [2024-11-22 04:03:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:03:20,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 90 [2024-11-22 04:03:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:20,322 INFO L225 Difference]: With dead ends: 40403 [2024-11-22 04:03:20,322 INFO L226 Difference]: Without dead ends: 27807 [2024-11-22 04:03:20,369 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 04:03:20,370 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 547 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:20,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1476 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:03:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27807 states. [2024-11-22 04:03:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27807 to 27148. [2024-11-22 04:03:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27148 states, 22791 states have (on average 1.4847088763108245) internal successors, (33838), 24861 states have internal predecessors, (33838), 1483 states have call successors, (1483), 811 states have call predecessors, (1483), 2872 states have return successors, (17895), 1603 states have call predecessors, (17895), 1482 states have call successors, (17895) [2024-11-22 04:03:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27148 states to 27148 states and 53216 transitions. [2024-11-22 04:03:23,379 INFO L78 Accepts]: Start accepts. Automaton has 27148 states and 53216 transitions. Word has length 90 [2024-11-22 04:03:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:23,379 INFO L471 AbstractCegarLoop]: Abstraction has 27148 states and 53216 transitions. [2024-11-22 04:03:23,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 04:03:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 27148 states and 53216 transitions. [2024-11-22 04:03:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 04:03:23,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:23,394 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] [2024-11-22 04:03:23,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:03:23,394 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:23,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:23,394 INFO L85 PathProgramCache]: Analyzing trace with hash -68219276, now seen corresponding path program 1 times [2024-11-22 04:03:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:23,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092153612] [2024-11-22 04:03:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:23,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:23,448 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 04:03:23,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:23,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092153612] [2024-11-22 04:03:23,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092153612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:23,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:03:23,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:03:23,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135557247] [2024-11-22 04:03:23,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:23,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:03:23,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:03:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:03:23,451 INFO L87 Difference]: Start difference. First operand 27148 states and 53216 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 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 04:03:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:27,302 INFO L93 Difference]: Finished difference Result 67878 states and 133427 transitions. [2024-11-22 04:03:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:03:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 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 90 [2024-11-22 04:03:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:27,493 INFO L225 Difference]: With dead ends: 67878 [2024-11-22 04:03:27,493 INFO L226 Difference]: Without dead ends: 41612 [2024-11-22 04:03:27,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:03:27,562 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 555 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:27,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1106 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:03:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41612 states. [2024-11-22 04:03:31,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41612 to 39063. [2024-11-22 04:03:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39063 states, 32900 states have (on average 1.476565349544073) internal successors, (48579), 35701 states have internal predecessors, (48579), 2233 states have call successors, (2233), 1201 states have call predecessors, (2233), 3928 states have return successors, (22678), 2288 states have call predecessors, (22678), 2232 states have call successors, (22678) [2024-11-22 04:03:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39063 states to 39063 states and 73490 transitions. [2024-11-22 04:03:31,543 INFO L78 Accepts]: Start accepts. Automaton has 39063 states and 73490 transitions. Word has length 90 [2024-11-22 04:03:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:31,544 INFO L471 AbstractCegarLoop]: Abstraction has 39063 states and 73490 transitions. [2024-11-22 04:03:31,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (5), 1 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 04:03:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 39063 states and 73490 transitions. [2024-11-22 04:03:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 04:03:31,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:31,575 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 04:03:31,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:03:31,577 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:31,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 797698365, now seen corresponding path program 1 times [2024-11-22 04:03:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992776354] [2024-11-22 04:03:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:31,659 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 04:03:31,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:31,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992776354] [2024-11-22 04:03:31,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992776354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:31,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063890822] [2024-11-22 04:03:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:31,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:31,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:31,665 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 04:03:31,668 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 04:03:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:31,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:03:31,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:31,793 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 04:03:31,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:03:31,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063890822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:31,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:03:31,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:03:31,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97682230] [2024-11-22 04:03:31,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:31,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:31,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:31,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:31,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:31,797 INFO L87 Difference]: Start difference. First operand 39063 states and 73490 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 04:03:34,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:34,399 INFO L93 Difference]: Finished difference Result 39440 states and 73956 transitions. [2024-11-22 04:03:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:34,400 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 04:03:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:34,674 INFO L225 Difference]: With dead ends: 39440 [2024-11-22 04:03:34,675 INFO L226 Difference]: Without dead ends: 38195 [2024-11-22 04:03:34,690 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 04:03:34,691 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:34,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 746 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38195 states. [2024-11-22 04:03:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38195 to 38195. [2024-11-22 04:03:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38195 states, 32128 states have (on average 1.4819783366533865) internal successors, (47613), 34920 states have internal predecessors, (47613), 2176 states have call successors, (2176), 1164 states have call predecessors, (2176), 3890 states have return successors, (22593), 2238 states have call predecessors, (22593), 2176 states have call successors, (22593) [2024-11-22 04:03:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38195 states to 38195 states and 72382 transitions. [2024-11-22 04:03:37,865 INFO L78 Accepts]: Start accepts. Automaton has 38195 states and 72382 transitions. Word has length 103 [2024-11-22 04:03:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:03:37,867 INFO L471 AbstractCegarLoop]: Abstraction has 38195 states and 72382 transitions. [2024-11-22 04:03:37,868 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 04:03:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 38195 states and 72382 transitions. [2024-11-22 04:03:38,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 04:03:38,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:03:38,018 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:38,027 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 04:03:38,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:38,219 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:03:38,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:03:38,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1710592462, now seen corresponding path program 1 times [2024-11-22 04:03:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:03:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985542216] [2024-11-22 04:03:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:03:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 04:03:38,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:03:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985542216] [2024-11-22 04:03:38,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985542216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:03:38,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391714147] [2024-11-22 04:03:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:03:38,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:03:38,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:03:38,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:03:38,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 04:03:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:03:38,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:03:38,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:03:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 04:03:38,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:03:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391714147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:03:38,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:03:38,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 04:03:38,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496366145] [2024-11-22 04:03:38,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:03:38,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:03:38,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:03:38,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:03:38,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:03:38,729 INFO L87 Difference]: Start difference. First operand 38195 states and 72382 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:03:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:03:44,021 INFO L93 Difference]: Finished difference Result 113874 states and 216912 transitions. [2024-11-22 04:03:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:03:44,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-22 04:03:44,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:03:44,654 INFO L225 Difference]: With dead ends: 113874 [2024-11-22 04:03:44,655 INFO L226 Difference]: Without dead ends: 75693 [2024-11-22 04:03:44,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 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 04:03:44,745 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 214 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:03:44,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 508 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:03:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75693 states.